FAQs

General FAQs

Therapy FAQs

PEMF Device FAQs

Red Light Device FAQs

General FAQs

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Can I speak to someone before I buy?

Of course, we’re here to help every step of the way.

 

If you have any questions or would like help choosing the right setup, the best place to start is via our contact page, or you can also book a free consultation by phone or Zoom by clicking here.

 

Alternatively, you can reach us directly:

- Email: office@celler8.com

- UK Freephone: 0808 1689 282

- Outside the UK: +44 1622 854864

- Live chat: Available via the speech bubble in the bottom corner of our website

 

Our UK opening hours are:
Monday to Thursday: 9:00am – 5:00pm
Friday: 9:00am – 4:30pm

 

We aim to respond to all enquiries within 24–48 hours.

How much is shipping?

Shipping costs vary depending on the product, your location, and the size of your order.

 

Most of our products include free shipping, with taxes and import fees already included for many regions such as the UK, USA, Canada, Europe, and the UAE. However, some larger items or specific destinations may incur a shipping fee due to factors like weight, dimensions, or logistics.

 

In some cases, you may see a higher shipping charge (e.g. £350). This typically means we have a local distributor available in your country, and ordering locally may help you avoid additional costs, reduce delivery times, and simplify the process. Click here to see all our distributors. 

 

For the most accurate shipping cost, we recommend checking the product page, where delivery fees (if applicable) are clearly shown based on your location. Or our general shipping page.

Where are your products shipped from?

Our products are shipped from our UK office apart from in the US and Australia.

 

For customers in the United States and Australia, we operate dedicated regional websites. For US customers please visit www.celler8.us and for Australia customers please visit www.celler8.com.au where orders are fulfilled locally. This helps reduce delivery times and means no additional import taxes or duties apply within those regions.

 

For other locations, orders are shipped from the UK, with taxes and import fees included in many regions where applicable. For more details on shipping click here.

How long is the warranty?

At CELLER8, we believe in the quality and longevity of our products. That’s why we offer extended warranties to give you complete peace of mind.

 

The CELLER8 comes with an impressive 3-year warranty, while our mats are covered for 2 years. For those using our high-intensity CELLER8 Max system both the device and all applicators also and all our red light panels include a 2-year warranty.

 

Every product is designed and tested for durability, so you can focus on your wellness routine knowing your investment is protected.

Do you offer a money-back guarantee?

We stand behind our products and want you to be fully satisfied with your purchase. If for any reason you are not completely happy, you can return it within 30 days of delivery for a full refund. No questions asked! Simply contact our customer support team, and we'll guide you through the return process.

How does your refund policy work?

If you are not happy with your purchase and would like to return an item to us, please contact a member of our team to discuss your options. Contact us with the reason for your return and details of your order via phone or email. Once you receive confirmation from us, you’ll be supplied with instructions on how to send your goods back to our returns address - NewMed Ltd, Station Road, Harrietsham, Kent, ME17 1JA, United Kingdom. Please include your order number or original invoice, so we can match up your return and ensure a timely return and refund process. We will issue you with a full refund so long as you have complied with the terms of our returns and refund policy. For full T&C’s please see here.

What payment methods do you accept?

We accept a range of secure payment methods at checkout, including Visa, Mastercard, Maestro, Shop Pay, Apple Pay, Google Pay, and PayPal.

 

Available payment options may vary depending on your location. Our regional websites may also offer additional methods. For example, customers in the United States may have access to HSA/FSA payments.

Do you offer payment plans?

We do not offer standard payment plans at checkout.

 

However, in some cases we may be able to arrange a payment plan directly through our team. If this is something you’re interested in, please contact us to discuss your options.
 

We also recommend checking PayPal, as they may offer flexible payment options to eligible customers depending on your region.

Why are we called CELLER8?

CELLER8 is a play on words between ‘cells and accelerate’. The 8 in the logo has no reference to an ‘eight’ as a number, as some customers have confused this in the past for the number of coils in the mat or the intensity of the device. Our full body mat has 12 coils and the maximum intensity is 100 Gauss.

 

The reason we wanted our brand name to represent the words ‘cells’ and ‘accelerate’ is down to the fact that PEMF’s affect our bodies at a cellular level and PEMF’s have been used in the past to accelerate recovery time and the natural healing ability of the body.

Device FAQs

CELLER8 FAQs

Shop CELLER8

How do I turn the device on and off?

Turning your CELLER8 device on and off is quick and simple.

 

To turn the device on, press and hold the centre of the control wheel for 2 seconds until the screen illuminates.

 

To turn the device off, press and hold the centre of the control wheel for 3 seconds until the screen powers down.

 

For a quick visual guide, you can watch the video below.

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How do I change the time, frequency and intensity?

Adjusting your session on CELLER8 is simple and can be done using the control wheel on the device.

 

Start by turning on the device and selecting your desired program. For all programs, you can adjust both the time and intensity by rotating the wheel to highlight the setting, pressing to select it, and then rotating again to choose your preferred value before confirming.

 

Intensity can be adjusted from 2% up to 100%, and session time can be set from 5 minutes up to 12 hours, giving you full flexibility depending on how you want to use the device.

 

If you would like to adjust the frequency, this is available within the custom program only. The preset programs are designed with specific frequencies already optimised for different times of day or use cases. To change the frequency, select the custom program, navigate to the frequency setting, and adjust it using the control wheel. Frequency can be set from 1 Hz to 100 Hz.

 

For a full step-by-step walkthrough, you can watch our video guide below.

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How do I change the polarity?

Changing the polarity on your CELLER8 is quick and easy.

 

Start by turning on the device and selecting your application. Then navigate to Settings by rotating the control wheel and pressing to select it. From there, scroll to Polarity and press the wheel to open the options.

 

You will see three settings: North, South, and Alt (alternating). The alternating mode will switch between north and south every minute.

 

Any polarity setting you choose will automatically apply to both the CELLER8 controller and any connected mats or applicators, so there’s no need to adjust them separately.

 

For a step-by-step walkthrough, you can watch the video guide below.

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My CELLER8 device makes a ticking noise. Is that normal?

Yes, this is absolutely normal! This is the same for most PEMF devices that offer higher intensities. Some people prefer that a PEMF device makes a noise, so they know it is working or within a session still. 

 

There are a few suggestions if this noise becomes disturbing to your session. Using the full body mat alone will make the ticking noise almost inaudible. So, when you don’t need to use the CELLER8 controller as part of a session, then this will reduce the ticking noise down. When using the CELLER8 controller, you can reduce the ticking by simply reducing the intensity. Reducing it down to 50% in an area with some noise in the background will make it less noticeable. Reducing down to 20% or 10% in a very quiet area will made the controller inaudible to most people.

 

Remember the CELLER8 offers much higher intensities than a lot of other PEMF devices, so if the noise is distracting to a session, then don’t be afraid to reduce the intensity, if desired. Lastly, this ticking sounds louder in most of our user videos than it is in real life due to the sensitive audio equipment used.

How do I test if my CELLER8 is working?

You can easily test your CELLER8 using the magnet provided in the box. Or as a quick check, you may also hear a clicking or ticking sound from the device during use, this is normal and confirms the system is operating.

 

Start by turning the device on and selecting a program, we recommend using the morning program at 100% intensity for the clearest response.

 

Turn the device over so the back (opposite the screen) is facing up, and move the magnet slowly across the surface. You should feel and hear a subtle response from the magnet, indicating the magnetic field is active.

 

This response may be quieter than when testing a mat, as the CELLER8 device delivers a more focused, higher-intensity field in a smaller area.

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What’s the expected life of the CELLER8?

The expected life of the controller, we hope, will be a lifetime if looked after. There are no deteriorating or serviceable parts so look after it, and it will look after you.

 

The device is built using high-quality components, including a medical-grade battery designed for long-term reliability and consistent performance.

 

For added peace of mind, the CELLER8 controller comes with a 3-year warranty, which is significantly above the industry average and reflects our confidence in its durability.

How long does CELLER8 take to charge?

The CELLER8 controller takes under 5 hours to fully charge from empty.

 

For best performance, we recommend charging the device using the supplied charger and allowing it to reach a full charge before extended use.

 

If you’re unsure how to charge your device, you can watch our step-by-step guide below.

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What is the battery life of CELLER8?

Battery life will vary depending on the program and intensity you are using.

 

As a general guide:

- Higher intensity settings will use more power

- Lower intensity settings can run for extended periods

- Using the controller with a mat and applicator will consume more power than using the controller on its own

 

Here’s a breakdown of typical battery performance:

Table Example
With a full battery at 21 °c  Celler8 controller and mat  Celler8 controller

Morning program

100% intensity

100 minutes 420 minutes

Night program

20% intensity

36 hours 44 hours

Why does CELLER8 offer 1-100 gauss intensity? 

This intensity range was not plucked out of the air and there is some evidence to suggest these are the optimal intensities when using PEMFs. One key evaluation was conducted by Mahsa Mansourian and Ahmad Shanei in 2021, which was a review of 92 publications between the years 1999 and 2019. These publications were all studying the cell responses and exchanges in humans and animals when applying PEMFs. They concluded that out of all of these studies the flux densities between 1 and 10 mT (10-100gauss), and chronic exposure more than 10 days would be more effective in establishing a cellular response. These 92 previous studies used a large range of intensities and concluded that the range of which the CELLER8 operates within get the best response from the cells. *M. Mansourian, A. Shanei, Evaluation of Pulsed Electromagnetic Field Effects: A Systematic Review, two decades of research, 2021.

Does CELLER8 use Bluetooth?

No! CELLER8 PEMF and red light devices do not use Bluetooth.

 

All applicators connect via a direct cable, ensuring a stable and reliable connection during every session. This is a deliberate design choice. Bluetooth operates at much higher frequencies, which we have chosen to avoid in order to keep the system focused on delivering low-frequency, natural PEMF as intended.

 

From a practical perspective, after over a decade of working with PEMF technology, we’ve also found that wired connections provide a more consistent and frustration-free experience, avoiding the connectivity issues that can sometimes occur with wireless devices.

Does CELLER8 produce any dirty electricity?

No, CELLER8 is designed to avoid this entirely.

 

CELLER8 is powered directly from the device’s internal battery, not from the mains. Even when plugged in, the wall supply is only used to charge the battery, not to power the session itself. This ensures a clean, stable signal without interference from standard 50/60Hz electrical currents.

 

To illustrate this, you can see a comparison below of the CELLER8 device and some of the most popular PEMF mats on the market. The CELLER8 waveform shows a clean signal, free from any external electrical interference from the mains. In contrast, the waveform from some popular PEMF mats appears more “fuzzy”, which indicates electrical interference from the mains. You can also see 50/60Hz interference in the form of small bulges or ripples to the sides of the main waveform. This shows the mains supply is not being fully filtered out, which is not ideal for producing a clean, consistent PEMF signal.

CELLER8 waveform

Other popular PEMF mat waveform

Can CELLER8 be used all over the world?

Yes the CELLER8 device is designed to be used globally and is ideal for travel. It is currently used in 40+ countries. 

 

The controller supports multi-voltage (100–240V), allowing it to be used worldwide. Each system includes UK, EU, and US plug adapters as standard, so you can use your device in most regions without any additional setup. AU adapters are also available, if required, please let us know at the time of purchase.

 

CELLER8 devices are supplied with protective carry cases, making them easy to store and transport. All mats and applicators connect directly to the CELLER8 controller, so they can be used anywhere the controller is used.

Is the CELLER8 device FDA cleared?

PEMF’s in general are recognised by the FDA but, the CELLER8 device does not need FDA clearance as a lot of PEMF devices are not registered medical devices, which do not require registration with the FDA. This doesn’t mean the CELLER8 device has not been tested for its safe use. It is still registered as an electronic device to be used in homecare and therefore it has CE/ UKCA certifications. The CELLER8 took over 6 years in development and a lot of this time was taken testing the device with many different regulating bodies to make sure it is safe and all care was taken to make it possibly the best PEMF device on the market. 

Can you use CELLER8 on a airplane?

Yes! The CELLER8 is portable and designed to be travel-friendly. You can take it on airplanes, typically in your carry-on luggage. Just be sure to follow your airline’s rules for electronic devices and lithium-ion batteries, and be prepared to remove it for security screening if requested.

Why does CELLER8 use a square wave?

CELLER8 uses a square wave because it allows the magnetic field to change quickly and cleanly with each pulse. In PEMF, the waveform describes how the magnetic field rises and falls over time, and different waveform shapes can behave very differently in how they transfer energy into the body.

 

A square wave is characterised by a fast rise and fall, meaning the magnetic field reaches its peak almost instantly and then drops just as quickly. This rapid change is known as the slew rate. Even if two devices have the same intensity and frequency, the speed at which the field changes can significantly affect how the signal interacts with the body.

 

Research and practical experience in PEMF have shown that sharper, faster-changing waveforms tend to produce stronger biological responses compared to slower, more gradual waveforms such as sine or triangle waves. This is because a rapid change in the magnetic field induces more efficient microcurrents within the body, which is one of the key mechanisms behind PEMF.

 

CELLER8 is engineered with a slew rate of <68 T/s, placing it within the well-researched optimal range. This means the signal is fast enough to be effective, while still remaining controlled and stable. It’s not about achieving the highest possible slew rate, but about operating within the range where the signal is delivered most efficiently.

 

In simple terms, intensity determines how strong the field is, frequency determines how often it pulses, and waveform (along with slew rate) determines how effectively that energy is delivered. By using a square wave with a carefully controlled slew rate, CELLER8 is designed to produce a precise, consistent, and efficient PEMF signal.

What is a ‘slew rate’ and why is it important?

So many devices in the market are compared by the strength or gauss readings, which we are learning, due multiple studies emerging, that slew rate is also incredibly important when selecting a PEMF device for a few reasons. Slew rate in PEMF therapy refers to how quickly the magnetic field changes over time; essentially, the "speed" of the pulse. It's crucial because a higher slew rate creates a stronger electrical response in cells, helping to stimulate healing, reduce pain, and activate deep tissues more effectively. Devices with low slew rates are gentler, ideal for sleep, relaxation, long-term wellness, and microcirculatory benefits while high slew rate systems are better for injury recovery, pain relief, bone healing and athletic performance.


Many brands do not publish their slew rates, either because they do not want to, they consider it confidential, or they simply do not know how to measure them. At CELLER8 we prefer to be as transparent as possible, as we are proud of the device we have created and the results it offers. We also designed the system to fit into both the higher and lower slew rate categories for the complete “all in one system”, without any compromise. Our CELLER8® device slew rate ranges from 4.6T/s - 68T/s. The slew rate is affected by the applicator you are using (higher on the controller and lower on the mats) and the intensity the device is set to during a PEMF session. The higher the intensity, the more the slew rate is affected and therefore the lower the slew rate. Again, the CELLER8® gives the user the complete control over the parameters and if they have a preference of intensity or slew rate. For the average user, we recommend sticking to the preset programs for ease of use and maximum results.


The reason our slew rate was designed to be higher on the CELLER8® compared to the full body mat applicators, ultimately comes down to the long-term goals with each applicator, as higher slew rates are better for targeting pain and acute injuries and the lower slew rates are ideal for full body circulation and overall wellness. During our testing we compared the CELLER8® full body mat to two other multi-therapy PEMF devices, which offer gem stones and far infrared technology on top of their PEMFs, which showed a very weak slew rate of 0.08T/s on one and 0.04T/s on the other system, which is possible to be too cold to illicit little or any therapeutic benefits.


For our full testing results of intensity and slew rates, please contact us and we are usually happy to share.

PEMF Mat FAQs

Shop PEMF mats

How do I connect my mat to CELLER8?

Connecting your mat to the CELLER8 controller is quick and simple.

 

Locate the cable attached to your mat (for example, on the full body mat this is positioned in the centre), and plug it into the right-hand side port of the CELLER8 controller. Once connected, turn on your device and select either “mat” or “mat and controller” depending on how you would like to use it. If the mat is not connected correctly, the device will display a symbol and emit a sound alert to let you know.

 

For a step-by-step walkthrough, you can watch our video guide below.

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How do I test if my mat is working?

To test your mat, use the magnet provided in the box.

 

With the CELLER8 turned on, set the mat to the morning program at 100% intensity, slowly move the magnet across the mat. Each section of the mat contains 3 internal coils, and as you pass over them, you should feel and hear a clear response from the magnet.

 

The mat will typically produce a stronger, more noticeable reaction than the controller, as it uses larger coils to generate a broader magnetic field across the body.

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What is the expected lifespan of the CELLER8 mat?

The expected life of the controller, we hope, will be a lifetime if looked after and the same principle applies to the mat. Look after it, and it will look after you.

 

The CELLER8 mat is designed to be durable and flexible, with an expected lifespan of 5–10 years depending on usage and care. Extensive internal testing, including on the copper coil system, has shown strong long-term durability.

To help maximise its lifespan, we recommend only folding the mat along its natural fold lines and avoiding rolling or folding it in other ways.

 

The mat comes with a 2-year warranty (extended from our original offering), which is well above the industry average typically around 6 months.

 

Each system also includes a protective carry case to support safe storage and transport.

What is the length, width, depth and weight of the mats?

We offer a range of mats designed to suit different needs and preferences, from portable options to full body systems. Please refer to the tables below for the exact dimensions and weight of each model.

Table Example
Product Length (cm) Width (cm) Depth (cm)  Weight (kg)
CELLER8  14  14  3.2 0.24 
Full Body Mat 169 49 2.2  3.4 
Travel Mat  81.5 49 2.2 1.7
Mini Mat  42 49 2.2 0.875

Why does CELLER8 focus on PEMF rather than multiple therapies in one mat?

CELLER8 is designed with a clear focus: delivering high-quality PEMF, done properly.

 

You may see other mats on the market offering multiple therapies in one device, such as infrared, crystals, or other features. While this can sound appealing, in practice these systems often take a “jack of all trades, master of none” approach, where each individual therapy is not delivered to a high standard.

 

When looking specifically at the PEMF element, it is often added as a feature rather than being the core focus. In many cases, the intensities and overall signal quality are significantly lower than what a dedicated PEMF system can deliver. For example, some systems operate at extremely low intensities, even below natural environmental levels, which raises questions about how effective they can be.

 

CELLER8 has been developed with years of experience in PEMF technology, with the belief that one therapy, delivered precisely, is far more effective than multiple therapies done poorly. Significant investment has gone into the internal design, including high-quality copper coil systems, to ensure a consistent and well-distributed magnetic field.

There is also an important consideration around combining very different types of energy. PEMF is based on low-frequency electromagnetic fields, whereas some additional therapies (such as infrared) operate at much higher frequencies. Combining these within the same device can create a less controlled environment, rather than a focused, optimised session.

 

Our approach is simple: focus on what works, and do it to a high standard. By specialising in PEMF, CELLER8 is designed to deliver a precise, consistent, and reliable signal, rather than trying to combine multiple technologies into one system.

I think the full body mat will be to small for me?

We encourage our customers to not be too worried about the actual mat covering your arms, full width or length if you are larger than the dimensions of the mat. It’s a common question we get. Because our mat has 12 large copper coils inside, spaced around each section and each coil is 50 gauss in strength. This means you get a magnetic field range of at least 2 meters in any direction and an accumulated strength of 600 gauss from the mat. The mat was strategically made this width and length, so that it can be used on armchairs and sofas or small beds and we didn’t want to limit its portability by making it too big. 

What side of the mat should I use?

When using the CELLER8 mat on its own, you can use either side of the mat.

 

However, when using the mat together with the CELLER8 controller (often referred to as the “sandwich effect”), it’s important to position it correctly. You should use the black side of the mat facing up, with the CELLER8 controller placed on your body and the screen facing away from you.

 

This ensures the magnetic field is aligned properly, creating a more uniform and consistent field across the treatment area. Using the grey side in this setup can reduce the quality of the field.

 

In the settings, you can choose between North, South, or Alt (alternating polarity). The alternating mode will switch between north and south every minute, allowing the body to be exposed to both. Any polarity setting selected will apply to both the mat and the controller automatically.

 

For a full visual demonstration, please watch the video guide below.

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What is the ‘sandwich effect’ in PEMF therapy?

The ‘sandwich effect’ occurs when two PEMF applicators are used together, typically positioned above and below an area of discomfort. As the magnetic fields overlap, stimulation in the targeted area is enhanced therefore promoting stronger cellular communication, repair and regeneration.

 

For a full visual demonstration, please watch the video guide below.

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CELLER8 Max FAQs

Shop CELLER8 Max

How do I use the CELLER8 Max?

Connecting your mat to the CELLER8 controller is quick and simple.

 

Locate the cable attached to your mat (for example, on the full body mat this is positioned in the centre), and plug it into the right-hand side port of the CELLER8 controller. Once connected, turn on your device and select either “mat” or “mat and controller” depending on how you would like to use it. If the mat is not connected correctly, the device will display a symbol and emit a sound alert to let you know.

 

For a step-by-step walkthrough, you can watch our video guide below.

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Does the CELLER8 Max need servicing?

The CELLER8 Max is built with solid state technology and high-quality components designed for long-term reliability. Unlike older spark gap systems, it doesn’t rely on mechanical parts that wear out or need periodic replacement. In normal use, the Max doesn’t require regular servicing, just basic care such as keeping it clean, storing it in a dry environment, and following the operating guidelines. If you ever experience an issue, our support team is here to help, but for most users, the CELLER8 Max will deliver consistent performance for years without the need for routine maintenance.

Why does the CELLER8 Max use solid state instead of spark gap?

The CELLER8 Max uses modern solid state technology because it delivers a cleaner, more consistent PEMF signal than older spark gap systems. Spark gap is an outdated method, first used over 100 years ago, that creates a pulse by jumping a high-voltage spark across an air gap, a process that generates large amounts of unwanted high-frequency “electrosmog” and produces an inconsistent, crude waveform that changes with factors like humidity. Solid state electronics, on the other hand, allow precise control over intensity, frequency, and pulse shape, ensuring a reliable and repeatable signal without unnecessary electromagnetic noise. This makes solid state not only more efficient and safer for long-term use, but also better aligned with delivering the clean, research-backed PEMF performance we designed the CELLER8 Max to provide.

Do I need to remove my watch, phone, or bank cards before using CELLER8 Max?

Yes we recommend removing electronic devices, watches, and bank or credit cards before using CELLER8 Max. This is because the Max is a high-intensity PEMF system. The strong pulsing magnetic fields can interfere with electronic circuits, magnetic strips, and RFID chips.

 

For example:

- Phones and tablets may experience glitches or data corruption if placed too close.

- Watches and fitness trackers (especially digital ones) can be affected by the pulses.

- Bank cards and hotel keys with magnetic strips or chips can lose their data.

 

The magnetic fields are designed to interact with your body, not your gadgets, so for best practice keep these items at a safe distance during sessions.

How many applicators can be used with CELLER8 Max at once?

The CELLER8 Max allows you to use two applicators at the same time.

 

This gives you the flexibility to combine different setups depending on your needs. A common approach is to use a full body mat alongside a localised applicator (such as the dial loop or large loop), allowing you to target a specific area while also running a broader session. You can also use two mats simultaneously, depending on your setup, for increased coverage.

 

This dual-output capability is designed to give you more flexibility and control over how you use the system.

Can you feel the CELLER8 Max?

In most cases, you will feel the CELLER8 Max during use.

 

At higher intensities, it’s common to experience a gentle pulsing, tapping, or muscle-like sensation in the area being treated, particularly when using localised applicators such as the dial or large loop. The exact feeling can vary depending on the intensity, applicator, and area of the body.

 

At lower intensities, the sensation may be much more subtle or not noticeable at all this is completely normal.

 

As with all PEMF, the presence or absence of sensation does not necessarily reflect how effective the session is, but the CELLER8 Max is designed to deliver a more noticeable experience compared to lower intensity systems.

PEMF For Pets FAQs

Shop PEMF for pets

Is PEMF safe for pets?

PEMF (Pulsed Electromagnetic Field) therapy is widely used as a non-invasive wellness technology. CELLER8’s PEMF systems are designed to be gentle, low-intensity, and suitable for regular at-home use, which means they are generally well-tolerated by most pets.

 

As with any wellness tool, if your pet has a diagnosed condition or is currently under veterinary care, we recommend checking with your vet before introducing PEMF into their routine.

Do pets feel anything during a PEMF session?

Most pets don’t feel anything specific during a PEMF session. Some may appear relaxed or sleepy, while others simply rest as normal. It’s common feedback from owners that their pets don’t seem to “feel” much during use however, we often find that with consistent sessions, animals naturally gravitate towards the device when it’s switched on.

 

Many pets show comfort by choosing to lie down, settle, or stay on or near the PEMF mat during use.

 

Every pet responds differently, and sessions should always feel calm and comfortable.

Can the CELLER8 be used without the pet mat?

Yes. The CELLER8 PEMF controller can be used with or without the pet mat. Some owners prefer using the controller on its own for a more localised PEMF session, while others combine it with the mat for broader coverage during rest or downtime.

Where should I place the CELLER8 PEMF device on my pet?

There’s no single “correct” placement when using PEMF. Many owners choose to position the device near the area they want to support, rest it alongside the body while their pet is lying down, or use the PEMF mat and simply allow their pet to choose their own position. Comfort is key, pets should never be restrained during use and should always be free to move away if they wish.

Can pets use the PEMF mat every day?

Yes. Many owners include PEMF as part of their pet’s daily wellness routine, particularly during rest, downtime, or after activity. Consistent, gentle PEMF sessions are often preferred over longer or more intensive use.

Can I put the PEMF mat on my pet’s bed?

Yes, you can place the PEMF mat in or on your pet’s bed to make sessions feel familiar and comfortable. Just be sure not to bend the mat, as this could damage the PEMF system.

How long should a pet PEMF session last?

A typical session lasts around 10–20 minutes, which is suitable for general daily use.

 

However, some pet owners prefer to leave the mat running for longer periods, sometimes for a few hours, or even during the day while they’re at work, allowing their pet to come and go as they please. This approach works well for animals who naturally settle on the mat and enjoy choosing when to lie on it.

 

As always, comfort is key. Pets should be free to move away at any time, and sessions should feel relaxed and natural within their normal routine.

Red Light Device FAQs

Shop red light devices

What’s the expected life of our red light panels?

Our red light panels are designed for long-term use and, when properly cared for, are built to last for many years. The expected life of the system, we hope, will be a lifetime if looked after. There are no serviceable parts, so look after it, and it will look after you.

 

Our full body red light panel is designed to last up to 100,000 hours of use. That’s the equivalent of approximately 300,000 20-minute sessions, giving you many years of consistent use.

 

For added peace of mind, all of our red light panels come with a 2-year warranty, reflecting the quality of the components and our confidence in their long-term performance.

How do I use the touch screen?

Our red light panels are designed to be simple and intuitive to use via the built-in touch screen.

 

Rather than overcomplicating things, we recommend watching the short video guides below, which walk you through exactly how to use the interface, adjust settings, and get started.

 

The same controls apply across our desktop, half body, and full body panels, so the process will be consistent regardless of your setup.

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Is there a minimum/ maximum distance we have to keep from the red light?

Yes, the user should be at least 3 inches away from the panel and an ideal session the user would be 4-8 inches to maximise the benefits. The electronic stand can easily be lowered to the right level automatically and the controller has memory settings so, you don’t have to adjust it each time. This saves time and effort as the red light will lower to the desired set height each time. 

Can you lie on the red light panel?

Not recommended no. It is advised to keep the panel on the stand and above the user. If the user wants to expose both sides, they can easily just turn over half way through a session. 

What does EMF emission mean?

EMF emission concerns the safe levels of EMF (high frequency electromagnetic fields). These EMFs are not the good ones and the ones we want to prevent our bodies from being exposed to due to the safe exposure limits set out by electronic certification bodies. So, the reading on the specifications for the red light panels is basically telling a user, at 3 inches away from the panel there are minimal and safe levels of EMF and therefore completely safe and recommended to use from this distance. 

Why does the CELLER8® red light offer different frequencies in Hz? What is the effect of the different frequencies?

The CELLER8 red light panels allow you to set the Hz anywhere from 1-10,000 Hz or choose from preset options including 2.5, 4, 7, 10, 73, 293, 587, and 1147 Hz, as well as a constant mode (which is most commonly used). The reason these panels offer different frequencies is the same as with PEMFs if we expose our bodies to the same frequency every time, there is a possibility the body may become accustomed to it, making it less effective. It is recommended to change the frequency from time to time to keep the sessions new and less familiar, helping to achieve the best and most effective results.

Are the different wavelengths fixed at different parts of the panel? 480+630+660+810+830+850+940nm 

Yes, these are all set within the panel and cannot be moved, but they are equally spread across it. The 480nm is blue light, the 630nm and 660nm are visible red light, and the 810nm, 830nm, 850nm, and 940nm are invisible near-infrared light. You have the ability to select red only, near-infrared only, blue only all together—which is the most common setting, or any combination.

Does the light dimmer affect the session?

Yes, the brighter the light is set, the more effective the session. You can adjust the combined blue and red light, as well as the near-infrared (NIR), from 1% to 100%. We recommend gradually increasing to 100% over several sessions, starting at around 20% to ensure your skin adapts comfortably to higher brightness levels over time.

What is the significance of the beam angle?

This is just showing you that each LED will overlap the next one, therefore making the session more effective. If the angle was only 10 degrees for example, it would target less surface area of the body. This again increases and maximises the benefits of each session. 

How wide is the light coverage from our red light panel?

The CELLER8 full-body red light panel emits light that spreads outward beyond its physical width. While the panel itself is 41.5 cm wide, the light it emits expands as it moves further from the source. At 6 inches away, the light spreads to 56 cm wide, and at 12 inches, it reaches 71 cm wide. This means you’re getting effective coverage beyond just the panel’s width. Check out our visual guide to see how the light spreads!

What’s the difference between a solar meter and a light spectrometer for irradiance readings?

When companies advertise the “power” of their red light therapy devices, they usually refer to irradiance (measured in mW/cm²). But the tool used to measure it makes all the difference.

 

Solar meters - A solar meter is designed to measure broad sunlight, not specific therapeutic wavelengths. Because it picks up stray light and heat, it often overestimates the true power of a red light panel. That’s why some brands use solar meters to inflate their numbers and make their device look stronger than it really is.

 

Light spectrometers - A spectrometer, on the other hand, breaks down the exact wavelengths of light being emitted (e.g., 630nm, 660nm, 810nm, etc.) and gives an accurate measurement of irradiance at those specific points. This is the gold standard for measuring red light therapy devices, because it tells you what’s actually reaching your skin at therapeutic wavelengths.

 

Watch out for misleading claims! Some companies add disclaimers like “Measured with a spectrometer for accurate numbers”. But if you look closely, they may have actually used both tools, recording inflated solar meter results but labelling them as spectrometer data. Unless you read carefully, it looks like the device was measured to scientific standards when it wasn’t. At CELLER8, we publish both solar meter and spectrometer readings so you can see the full picture. But only the spectrometer data tells you the true therapeutic output of the panel. No shortcuts, no inflated claims.

Why are only some of the lights on the red light panel is in use? 

When you look at our red light panels, you might notice that only some of the LEDs appear to be on. They are not broken. In many cases, the bulbs that look “off” are actually emitting near-infrared (NIR) light, which is invisible to the human eye.

 

This is completely normal and part of how the panel is designed to function. Each LED on the panel is dedicated to a specific wavelength, so it will only illuminate when that wavelength is selected. For example, if you choose blue light, only the blue LEDs will turn on. If you select red and blue together, only those wavelengths will be visibly active, while others, such as near-infrared, will remain unseen. When near-infrared is selected, those LEDs are working, but because that wavelength sits outside the visible spectrum, you simply cannot see it.

Therapy FAQs

PEMF Therapy FAQs

Learn more about PEMF therapy

Is PEMF therapy safe?

Pulsed Electromagnetic Field (PEMF) technology has been researched and used for decades across both clinical and wellness settings. When used as directed, PEMF is safe and non-invasive. 

PEMF therapy contraindications

PEMF Contraindications


Implanted Electronic Devices: one of the main contraindication’s of PEMF therapy are for individuals who have a pacemaker, cochlear implant or an intrathecal pump fitted. If you have an implanted electrical device such as a pacemaker, cochlear implant or an intrathecal pump we do not recommend you apply PEMF therapy because there is a risk there is a risk that the magnetic field produced by a PEMF device can shut the device off or otherwise interfere with its function.

 

Organ Transplants: PEMFs are contraindicated in organ transplant patients. PEMF therapy is not advised after an organ transplant as over stimulation could increase the risk of rejection.

 

PEMF Cautions


Pregnancy: caution is advised during pregnancy. Whilst there is no evidence of harm caused by using PEMFs during pregnancy, their safety has not yet been established.

 

Neurological Conditions: those with neurological conditions that can cause seizure (e.g epilepsy) are advised to be cautious when using PEMF therapy. Reports of PEMF initiating a seizure are very rare however there is the theoretical potential for this to happen.

 

Active Bleeding: one of the benefits of applying PEMF therapy is the increase in circulation and blood oxygenation but for people suffering from active bleeding i.e after an operation, this may worsen the blood loss and reduce the ability of the blood to clot in order for it heal over properly. Any source of bleeding should be fully controlled before using PEMF therapy.

Are there any side effects of PEMF therapy?

Across published PEMF research, no negative side effects have been reported.

 

In higher-intensity PEMF, 3,000 Gauss and above, side effects are rare but can occur if sessions are run for too long or at excessive intensity. In these cases, some individuals may report temporary muscle soreness as high-intensity PEMF can stimulate muscle tissue in a way that feels similar to light exercise. Occasionally, a short-lived “flu-like” feeling is described, often when intensity and duration are increased too quickly. These effects are typically mild and resolve on their own. As with any wellness technology, starting gradually and following recommended usage guidance helps ensure sessions remain comfortable and well tolerated.

How often do I need to use PEMF?

We recommend for the perfect recipe for health and wellness to use the CELLER8 (full body mat if possible) twice per day for the recommended 20 minutes per session. One session in the ‘morning‘ and one session in the ‘evening’ on those program names. You do also have the ability to shorten or lengthen the preset programs and sessions where required if you have more or less time to enjoy some PEMFs.

 

There are bonus sessions including ‘night’, where you can just use the CELLER8 controller by your pillow to encourage deep and restful slumber and a ‘meditation’ setting, to help find your inner zen whilst also benefitting from the healing benefits of low frequency pulsed electromagnetic fields.

Is PEMF therapy FDA approved for anything?

Yes PEMF has gained any FDA approvals for a wide range of conditions, which are listed below:

 

1979 – FDA approved PEMF therapy for healing non-union fractures.
1987 – FDA approved for adjunct therapy when treating postoperative edema and pain.
1998 - FDA approved PEMF Therapy for urinary incontinence and muscle stimulation.
2004 - FDA approved PEMF Therapy for cervical fusion patients at high-risk of non-fusion.
2006 - FDA approved PEMF Therapy for treatment of depression and anxiety.
2011 – FDA approved PEMF Therapy for treatment of brain cancer.

Are EMFs and PEMFs the same?

No. A big difference between PEMFs and EMFs is that PEMF therapy uses frequencies and magnetic fields at therapeutic levels. PEMF devices are considered healing because they replicate the natural magnetic field and low frequencies of the earth and never reach the high frequencies or heating effects of EMFs. It is unproven that EMFs (such as from wireless devices) have a negative effect on your health but they are also different from PEMFs.

Is there a "safe zone" for PEMF therapy?

Yes all levels of PEMF are safe. You may see some sellers of low-intensity PEMF devices share charts, like the one below, referencing organisations such as ICNIRP or the World Health Organization to suggest there is a defined “safe zone” and that anything above it is dangerous. In reality, this is a marketing tactic used to position low-intensity systems as inherently safer than medium to higher intensity devices. Across decades of PEMF research, studies have used field strengths well above what these charts often label as a “danger zone” without reporting any harmful or negative side effects.

 

The key point is that those exposure limits were never designed for PEMF therapy. They were created to protect the general public from continuous occupational or environmental electromagnetic exposure, such as power lines, industrial magnets, or MRI fringe fields, where someone could be exposed across their whole body for long periods of time, potentially 24 hours a day. PEMF is entirely different. It is pulsed rather than continuous, applied for short sessions rather than constant exposure, and typically localised to a specific area of the body. Because of this, environmental safety guidelines cannot be directly applied to therapeutic PEMF dosing.

What is the threptic difference between high and low intensity PEMF therapy?

In simple terms, the main difference between low and high PEMF intensities comes down to how they interact with the body and what outcomes they tend to support. Low-intensity systems, typically below 10 Gauss, can be effective but usually work more gradually. Their benefits often build up over time with consistent use, making them well-suited to sensitive users or those looking for gentle, restorative sessions.

 

Medium-intensity devices, roughly 10–100 Gauss, are often considered the “sweet spot” for most people. This range is the most widely studied and tends to deliver the best balance of comfort, cellular response, and practical results supporting processes linked with pain management, inflammation balance, and tissue repair. In everyday terms, this is where users often report faster and more complete recovery compared to lower or higher ranges.

 

High-intensity systems, above 100 Gauss (especially those exceeding 1,000 Gauss), produce much stronger fields and are often felt physically as muscle twitching or deep pulsing. While they can provide noticeable, short-term pain relief, they’re generally less consistent for longer-term recovery goals. These systems are typically used in clinical environments for specific applications rather than everyday wellness.

 

Overall, the medium-intensity range is widely seen as the most balanced strong enough to stimulate a meaningful cellular response, yet gentle enough for regular, restorative use. It’s ideal for supporting recovery and regeneration. High intensity tends to be better suited for instant pain relief or muscle activation issues (such as pelvic floor stimulation), but true healing appears to occur more consistently within the medium-intensity range, as there are no studies showing that high intensity actually promotes tissue regeneration.

What is slew rate?

Slew rate describes how quickly the magnetic field changes during each pulse, in other words, it measures the speed of the rise and fall within the waveform. Two PEMF signals can have the same peak intensity but still behave very differently depending on how fast they reach that peak.


A good example of a waveform has a fast rise time, meaning the pulse reaches its maximum level almost instantly. This creates a steeper slope and a more effective change in the magnetic field. A poor example has a slow rise time, where the signal takes much longer to build up before peaking, resulting in a softer, shallower slope.

Red Light Therapy FAQs

Learn more about red light therapy

Is red light therapy safe?

Yes, red light therapy is considered very safe when used as directed. Unlike ultraviolet (UV) light, it does not damage DNA or cause sunburn. Instead, it uses non-ionising wavelengths that gently stimulate your cells. Side effects are rare and usually limited to mild, temporary skin warmth or redness if the device is used too close for too long. CELLER8 devices are tested for low EMF emissions and built with safety certifications such as CE and FDA registration, so you can feel confident using them at home or in professional settings.

Red light therapy contraindications

The CELLER8 red light panels allow you to set the Hz anywhere from 1-10,000 Hz or choose from preset options including 2.5, 4, 7, 10, 73, 293, 587, and 1147 Hz, as well as a constant mode (which is most commonly used). The reason these panels offer different frequencies is the same as with PEMFs if we expose our bodies to the same frequency every time, there is a possibility the body may become accustomed to it, making it less effective. It is recommended to change the frequency from time to time to keep the sessions new and less familiar, helping to achieve the best and most effective results.

Are there any side effects of red light therapy?

Red light therapy is generally very safe, with very few reported side effects. Unlike UV light, it doesn’t burn or damage DNA. The most common effect is mild warmth or slight skin redness if you’ve used the device very close for a long session, but this usually fades quickly. Sensitive individuals may also feel temporary eye strain if they stare directly into the LEDs, which is why it’s best to glance away or use eye comfort measures. All CELLER8 devices are low-EMF, certified, and designed for safe daily use at home or in professional settings.

Is red light therapy FDA approved for anything?

Yes PEMF has gained any FDA approvals for a wide range of conditions, which are listed below:

 

2002 – FDA cleared PBM devices for relief of minor muscle and joint pain, arthritis, muscle spasms, and increasing local blood circulation.

2003 – FDA cleared PBM for muscle relaxation and stiffness reduction as an adjunctive therapy in physical medicine.

2009 – FDA cleared low-level light therapy (LLLT), a form of PBM, for treatment of carpal tunnel syndrome.

2010 – FDA cleared laser and LED caps for treatment of hair loss (androgenetic alopecia) in both men and women.

2013 – FDA cleared PBM for reducing pain and stiffness associated with knee osteoarthritis.

2018–present – Continued FDA clearance for red light devices for wrinkle reduction, wound healing, and supporting recovery after cosmetic procedures (depending on device and claim).

Can red light therapy improve vision?

Some research suggests low-level red light may help support healthy ageing in the eyes by improving mitochondrial efficiency in the retina. However, these are early-stage findings so think of any benefits as a possible “bonus,” not a primary use case.

What does ‘photobiomodulation’ mean?

Photobiomodulation is simply the scientific term for red light therapy. Broken down, “photo” means light, “bio” refers to life or living systems, and “modulation” means change or influence. In other words, it’s the process of using light to positively influence biology. Scientists prefer this technical term because it captures both the red and near-infrared spectrum and the wide range of biological effects studied in clinical trials. For users, it’s easier to think of it as “red light therapy” a safe, non-invasive way of giving your cells a boost of usable energy.

Do you need to remove clothes for red light therapy?

Yes. For red light therapy to work effectively, the light needs direct access to your skin. Red and near-infrared light cannot properly penetrate through clothing, so fabric will block or significantly reduce the amount of light reaching the treatment area.

 

For best results, the area you want to treat should be exposed so the light can reach the skin directly.

Red Light Therapy & Tattoos

One of the most common questions we hear is: “Will red light therapy fade my tattoo?” The good news is no! Unlike sunlight and UV exposure, red light therapy doesn’t fade tattoo ink.

 

In fact, many people use red light therapy to support their skin before and after getting a tattoo. Tattoos are essentially controlled skin trauma, and wavelengths like 630nm and 660nm (both included in CELLER8 panels) are well studied for their ability to support skin quality, calm redness, and aid natural recovery. Using red light in the weeks before getting a tattoo can help condition the skin, and aftercare sessions may support the healing environment.

 

If you already have tattoos, CELLER8 can still be used confidently for overall skin health, recovery, and wellbeing — without worrying about colour loss.

Red Light Therapy & Sunburn

“Sunburn isn’t just uncomfortable, it’s a form of skin damage caused by UV radiation. Beyond redness and soreness, repeated burns are linked to premature ageing and long-term skin issues. While nothing replaces sensible sun protection (shade, clothing, mineral sunscreen), red light therapy has been studied for both preventing and soothing sunburn.

 

Pre-conditioning the skin: Studies show that pre-treating skin with 660nm red light can reduce redness and delay the onset of UV-induced burns. In some cases, it acted almost like an SPF-15 buffer.

 

Calming inflammation: Red and near-infrared wavelengths (like CELLER8’s 630nm, 660nm, 810–850nm) are known to help regulate oxidative stress and inflammatory pathways in skin cells, supporting a faster return to balance after sun exposure.

 

Supporting repair: By stimulating mitochondria and improving circulation, red light encourages the skin’s natural repair processes, including collagen and elastin production, which can be useful for both prevention and aftercare.

 

Unlike sunlight, which bombards your skin with the full spectrum (including UV), CELLER8 panels deliver only targeted therapeutic wavelengths. With both 630nm and 660nm plus near-infrared, they provide the blend shown to be most relevant for skin health without heat or UV risk.

 

Before sun exposure: Short, consistent sessions may help condition the skin over time, making it less prone to UV redness.

 

After mild sunburn: Sessions of around 5–10 minutes, once or twice daily at close distance (a few cm to 6 inches) can help calm redness and support recovery.

 

As part of skin care: Regular use contributes to overall skin resilience, complementing your sun-safe habits.

Learn More About CELLER8

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