Best Red Light Therapy Device for Your Knees (UK 2026): Portable Panel vs Pro Panel vs Mat

Short answer: for one knee, the Lumovex Portable Panel (£99.99) is the most targeted choice. It's roughly phone-sized, so you can aim it at exactly the part of the knee that bothers you (front, side or back), and its output is published: 30 mW/cm² at 3 inches. If both knees bother you, the Pro Panel 540 (£149.99) lights up both at once from its stand while you sit. If you also want your legs and back covered after training, look at the Total Recovery Mat (£199).

Below is how each option reaches a knee, who it suits, and an honest look at what the knee research does and doesn't show.

Knee devices compared

Device	Price	How it reaches the knee	Both knees at once?	Hands-free?	Strength (published)	Best for
Portable Panel	£99.99	Aimed about 3 inches from the exact spot: front, side or back of the knee	No, one at a time	Held or propped	30 mW/cm² at 3 inches	One knee, targeted sessions, travel
Pro Panel 540	£149.99	Stands 15-30cm from the front of both knees	Yes	Yes, on its stand	Over 150 mW/cm² at 6 inches, 96 at 12 inches	Both knees, the front of the knee
Total Recovery Mat	£199	You lie on it, so it reaches the backs of your knees and legs	Yes	Yes	11.8-49.3 mW/cm² at the surface (P1-P5)	Runners, legs and back together
Red Light Therapy Belt	£74.99	Can wrap a knee, but it's made for the waist so the length overlaps	No	Yes	89-126 mW/cm² at skin contact (L1-L5)	People who mainly want the lower back, with the odd knee session

A note on the numbers: belt and mat figures are measured at skin contact, panel figures at a distance, so they aren't directly comparable. What matters is that each one is published, which many listings don't do. Our dosage guide explains how strength and session time fit together.

Why fit matters more for a knee than a back

A lower back is broad and fairly flat. A knee is a curved joint with a front, two sides and a back, and the part that bothers you might be any of them. Light only reaches the skin facing the LEDs, so before you choose, it helps to know where you feel it:

• One spot on one knee (front, inner or outer side, or behind it): the Portable Panel, aimed straight at it.
• The front of both knees: the Pro Panel 540 in front of you while you sit.
• The backs of both knees plus thighs and calves: the mat.

Option 1: the Portable Panel, for one knee

• It's built for targeted areas. At 150 x 95 x 40mm it's roughly phone-sized, with red LEDs at 660nm and near-infrared LEDs at 850nm. You point it at the exact part of the knee you want, rather than lighting the whole leg.
• It reaches every side of the joint. Work round the front, the inner and outer sides, and behind the knee, which a wrap or a standing panel can't do as easily.
• Its output is published. 30 mW/cm² at 3 inches. Hold it closer for more intensity on a small area.
• Sessions are short. 5-10 minutes per area, and the built-in timer switches off at 20 minutes.
• It's cordless and goes anywhere. USB-C rechargeable (a full charge takes about 3.5 hours), and it fits in a bag for travel or the gym.

The trade-off: you hold it or prop it up against something, so it's less of a lie-back-and-relax session than the mat. And it does one knee at a time.

Option 2: the Pro Panel 540, for both knees

The Pro Panel 540 stands on a 360-degree rotating base with a height-adjustable arm. Sit in a chair, lower the panel to knee height and place it 15-30cm in front of you, and both knees are covered at the same time. It has 145 red LEDs at 660nm and 144 near-infrared LEDs at 850nm, and it's the best option here for the front of both knees. You can also angle it at your shoulders, back or face, so it's the most flexible choice if knees aren't the only area. Our guide to how far to sit from a panel explains distance.

Option 3: the Total Recovery Mat, for runners and whole-leg soreness

The mat is 150 x 60cm with 900 LEDs. You lie on top of it with your head on a pillow, and it covers you from the neck to the ankles. For knees, that means the backs of both knees, plus your calves, thighs and back, in one 15-20 minute session. It suits runners and anyone whose knees ache alongside tired legs. Be clear on the limit: lying on your back, it reaches the back of the knee, not the kneecap. If it's mainly the front of the knee, add the Portable Panel or choose the Pro Panel 540. More detail is in our red light therapy mat guide.

What about the belt?

The Red Light Therapy Belt (£74.99) is designed for the waist and lower back. It's long enough to wrap around a knee, and it's hands-free, but on a knee the extra length overlaps and it's harder to aim at one spot. If your lower back is the main problem and your knee is occasional, the belt covers both. If the knee is the main problem, the Portable Panel is the better fit. See our lower back device guide for that comparison.

Lumovex vs a £479 laser knee wrap

The best-known knee device in the UK is Kineon's MOVE+, listed at £479 on Kineon's UK site in October 2026. According to Kineon's published specs, it uses three modules, each with 8 red LEDs at 660nm and 10 near-infrared Class 1 laser diodes at 808nm, strapped onto the joint.

The honest comparison:

• Kineon's main difference is the laser diodes. Most knee trials used lasers, so a laser device is closer to what was studied. Whether lasers do better than LEDs at a similar dose is still an open question in the research.
• Our devices are LED-only and cost far less. The Portable Panel is £99.99 for one knee, and the Pro Panel 540 covers both knees for £149.99.
• Both approaches rely on regular sessions over weeks, not one-off use.

If you specifically want a laser device, Kineon is a reasonable choice. If you want red and near-infrared light on your knees at a lower price, with published strength figures, the Portable Panel or Pro Panel 540 will do the job.

What the research on knees actually shows

Most knee research is on knee osteoarthritis, and most of it used clinic lasers rather than home LED devices, so it's worth being clear about what it tells us.

• A 2024 systematic review and meta-analysis by Oliveira and colleagues in Physical Therapy included 10 randomised, placebo-controlled trials with 542 people with knee osteoarthritis. Pooling 6 of those trials, light therapy reduced pain at rest compared with placebo, by a moderate amount. But the authors rated the certainty of that evidence as very low, found no clear effect on a timed walking test, and concluded it shouldn't be used on its own, but may be used alongside widely recommended approaches.
• The same review notes that exercise-based physiotherapy and weight management remain the first-line approaches for knee osteoarthritis.

So the honest picture: there's some evidence that red and near-infrared light may help with knee comfort, the effects in trials were modest, the evidence is weak, and home LED devices haven't been tested in the same way. We'd see red light as a comfortable add-on to your physio exercises, not a replacement for them. For the wider research on osteoarthritis and rheumatoid arthritis, see our arthritis research guide. For how light is thought to work in tissue, see our joint pain and stiffness guide.

How to use red light on your knee

• Use it on clean, bare skin, as clothing blocks most of the light.
• With the Portable Panel, hold it about 3 inches away and give each area 5-10 minutes. With the Pro Panel 540 or the mat, start on a low level and move up if it's comfortable.
• Aim for 3-5 sessions a week. See how often to use red light therapy.
• Don't stare directly into the LEDs at close range.
• If you train, it fits naturally after a run or a session. Our guide to red light before or after a workout covers timing, and our muscle recovery research guide covers the evidence.
• Keep doing any strengthening exercises your physio has given you. Light works alongside them, not instead of them.

Who should check with a GP or physio first

• If you've had knee surgery, including a knee replacement, or a recent injection into the knee, ask your surgeon or GP before starting.
• If you take medication that makes your skin sensitive to light.
• If your knee is hot, very swollen, locking or giving way, or the pain is new and severe, see your GP rather than trying anything at home.

Our safety and contraindications guide has the full list.

Frequently Asked Questions

What's the best red light therapy device for knee pain?

For one knee, a small targeted panel is usually the best fit, because you can aim it at the exact part of the joint. The Lumovex Portable Panel is £99.99, with published output of 30 mW/cm² at 3 inches. For both knees at once, a standing panel like the Pro Panel 540 (£149.99) is the better fit.

Can I use it on both knees at the same time?

Yes, with the Pro Panel 540 (sit with it in front of both knees) or the Total Recovery Mat (it reaches the backs of both knees while you lie on it). The Portable Panel does one knee at a time.

Can I reach the back of my knee?

Yes. Hold the Portable Panel behind the knee, or lie on the Total Recovery Mat, which reaches the backs of both knees.

Can I use it over a knee brace or support?

No. Light needs to reach bare skin, so take the brace off for the session and put it back on afterwards.

Can I use red light therapy after a knee replacement?

Check with your surgeon or GP first, especially in the first weeks after the operation. Some people use red light later in their recovery, but your surgical team should decide when it's suitable for you.

What's best for a runner's knees?

If it's mainly one knee, the Portable Panel, which also fits in a gym bag. If your knees ache along with tired calves, thighs and back after long runs, the mat covers all of that in one session.

Is there a cheaper alternative to a laser knee wrap?

Yes. LED devices like the Lumovex Portable Panel (£99.99) or Pro Panel 540 (£149.99) deliver red and near-infrared light for a fraction of the price of a £479 laser wrap. The difference is that they use LEDs rather than laser diodes, which is what most knee trials tested.

How long before I notice anything?

In the knee trials, any changes in comfort were measured over several weeks of regular sessions. Many people give it 4-6 weeks of consistent use before deciding.

The bottom line

For one knee, start with the Portable Panel: it's targeted, reaches every side of the joint and costs £99.99. Choose the Pro Panel 540 if both knees bother you, and the mat if you want your legs and back covered too. Whatever you choose, use it alongside your exercises, and see your GP if your knee is swollen, hot or getting worse.

Disclaimer: Lumovex devices are wellness products, not medical devices. They are not intended to diagnose, treat, cure or prevent any disease. Speak to a healthcare professional about persistent or severe knee pain.