Red Light Therapy 660nm 850nm Benefits and Modes
The Science of Depth
Two Wavelengths. Three Targeted Modes.
How to use the Target Light 2.0
Deep tissue and joint support
Hold the Target Light 2.0 directly against the skin or within 0 to 5cm for 5 to 7 minutes per area. Switch to near infrared mode (850nm) or full spectrum mode for joints, muscles, and deeper tissue wellness. This close range proximity ensures maximum light absorption where it matters most.
Face, eyes, and skin care
Position the device 20cm or more from your face for 5 to 10 minutes. Switch to red mode (660nm) for surface level skin care and eye comfort. Eyes can be open or gently closed, whichever feels most comfortable. The further the distance, the gentler the exposure.
Your daily wellness rhythm
Use once or twice daily. Mornings may help set the tone for focus and alertness, while late afternoons or evenings support your wind down routine. The three modes let you tailor each session to your goal — red for skin and eyes, near infrared for deep tissue, or full spectrum for everything in a single session.
Consistency is key. Every order includes a detailed user guide to help you master your routine.
Download the user guideWhat's included
Target Light 2.0 | Power Cable with E27 Screw Fitting + Switch | Full User Guide PDF + Bonus Guides | Free Consultation Calls on Request
Technical specifications
Red Light Rising Target Light 2.0
| Wavelengths | 660nm (red) + 850nm (near infrared) |
| LEDs | 48 (14x 660nm red + 34x 850nm NIR) |
| Modes | 3 (red only, near infrared only, combined) |
| Combined irradiance — 10cm | 137.10 mW/cm² |
| Combined irradiance — 15cm | 99.56 mW/cm² |
| Combined irradiance — 20cm | 84.88 mW/cm² |
| Combined irradiance — 30cm | 54.84 mW/cm² |
| Combined irradiance — 50cm | 27.04 mW/cm² |
| Combined irradiance — 100cm | 7.08 mW/cm² |
| All irradiance readings independently tested by the LIA Laboratory, UK (Report P10145A, EN 62471:2008) | |
| Red 660nm irradiance — 10cm | 50.87 mW/cm² |
| Red 660nm irradiance — 30cm | 21.21 mW/cm² |
| NIR 850nm irradiance — 10cm | 86.23 mW/cm² |
| NIR 850nm irradiance — 30cm | 33.63 mW/cm² |
| Individual wavelength readings at key treatment distances for reference | |
| Rated wattage | 48W |
| Real wattage (LIA tested) | 35.54W |
| EMF (magnetic) at 15cm (6 inches) | 0.2 mG |
| EMF (electric) at 15cm (6 inches) | 73 V/m |
| EMF measured using TriField TF2 meter on non-conductive surface. Device warmed up before reading. | |
| For a full explanation of these readings and what they mean, see the EMF question in our FAQ section below. | |
| Flicker | Flicker free (LIA tested) |
| Safety certifications | CE, ROHS |
| Dimensions | 150mm × 120mm |
| Weight | 383g |
| Casing | Aluminium + plastic |
| Cooling | Built in fan (60mm × 60mm × 10mm) |
| Coverage area | Face, eyes, single joint, or targeted body area |
| Power supply | 230V AC 50Hz mains powered |
| Fitting | E27 screw (cable with switch included) |
| Warranty | 1 year (covers manufacturing faults only) |
| Trial period | 365 day money back trial |
Independently tested by the UK Lighting Industry Association
The Target Light 2.0 has been independently tested by the LIA Laboratory in the UK, an accredited testing facility operated by the Lighting Industry Association.
Irradiance was measured separately for both the 660nm red and 850nm near infrared wavelengths using a Bentham IDR300 double monochromator to standard EN 62471:2008, with readings taken at seven distances from 10cm to 150cm. Flicker was tested to PD IEC TR 63158:2018 and confirmed at 0.3% with a flicker index of 0.
Unlike many red light therapy devices that rely on in house testing, every irradiance and flicker figure on this page is independently verified by a UK laboratory.
Download the full LIA lab report (PDF)
Spectral output at 100mm — dual peaks at 660nm and 850nm
Irradiance results at seven distances (10cm to 150cm)
Backed by research
The wavelengths used in the Target Light 2.0 — 660nm and 850nm — are two of the most frequently studied in red light therapy and photobiomodulation research. Studies suggest that 660nm red light may support skin wellness and eye comfort by interacting with cytochrome c oxidase at the surface level, while 850nm near infrared light penetrates deeper into tissue where it may support joint comfort, muscle wellness, and cellular energy production. Peer reviewed research continues to explore the role of these wavelengths across a wide range of wellness applications.
Read more about the science →Is the Target Light 2.0 right for you?
This might be right for you if...
- ✓ You want both red and near infrared wavelengths in a single handheld device for skin, eyes, joints, and muscles
- ✓ You want targeted support for specific joints — knees, shoulders, wrists, neck — with near infrared light
- ✓ You want to support your skin tone, complexion, or eye comfort with 660nm red light
- ✓ You want three switchable modes (red only, near infrared only, or combined) to tailor each session
- ✓ You want a mains powered device with no battery to charge or replace
- ✓ You want higher combined irradiance than a single wavelength device (137 mW/cm² at 10cm)
- ✓ You value independently tested irradiance and flicker data from a UK laboratory
This might not be right for you if...
-
✗
You only need a single wavelength for face, eyes, and skin care without near infrared
→ Consider the Target Light 670 -
✗
You need a battery powered device you can use anywhere without a power socket
→ Consider the Target Light 3.0 -
✗
You want three wavelengths including 810nm for the widest range of applications
→ Consider the Target Light 3.0 -
✗
You want to treat large areas like your full back, legs, or torso in a single session
→ Consider an Advantage panel -
✗
You're looking purely for a circadian lighting or ambient sleep lamp
→ Consider the Dusk Lamp
Frequently asked questions
The Target Light 2.0 has three modes that you can switch between depending on your goal.
Red mode (660nm only) activates only the visible red LEDs. This mode is best suited for surface level wellness — skin care, complexion, eye comfort, and relaxation. Use it at 20cm or more from your face for 5 to 10 minutes.
Near infrared mode (850nm only) activates the invisible near infrared LEDs. This mode is designed for deeper tissue support — joints, muscles, and cellular wellness below the surface. Hold the device directly against the skin or within 0 to 5cm for 5 to 7 minutes per area.
Combined mode (660nm + 850nm) activates both wavelengths simultaneously, delivering a combined irradiance of 137 mW/cm² at 10cm. This mode is ideal when you want to support both surface and deep tissue wellness in a single session.
The Target Light 670 offers 670nm red light only for face, eyes, and skin. Mains powered, £119.
The Target Light 2.0 (this device) adds 850nm near infrared for deeper tissue support alongside 660nm red, with three switchable modes. Mains powered, combined irradiance of 137 mW/cm² at 10cm, £239.
The Target Light 3.0 adds a third wavelength (810nm), rechargeable battery, touchscreen controls, and a carry case. Maximum portability and versatility, £289.
The Target Light 4.0 is a professional grade spotlight for clinics and advanced home users with a built in floor stand and significantly higher irradiance.
For full body coverage, explore our Advantage red light therapy panels.
The recommended distance depends on what you are targeting.
For joints, muscles, and deep tissue support, hold the device directly against the skin or within 0 to 5cm and use near infrared or combined mode for 5 to 7 minutes per area. The closer the device, the higher the irradiance delivered to the tissue.
For face, eyes, and skin care, position the device 20cm or more from your face and use red mode for 5 to 10 minutes. Eyes can be open or gently closed, whichever feels most comfortable.
You can use the Target Light 2.0 once or twice daily. Morning sessions may help set the tone for the day, while evening sessions support your wind down routine.
Every order includes a detailed user guide with session recommendations for different wellness goals.
This is completely normal and your device is working correctly.
The Target Light 2.0 contains two types of LEDs — 14 red LEDs at 660nm and 34 near infrared LEDs at 850nm. The 660nm red LEDs produce a bright, visible red glow. The 850nm near infrared LEDs, however, emit light that is almost entirely invisible to the human eye. They may appear very faintly lit or completely off, but they are delivering near infrared energy into your tissue.
This is not a fault — it is actually a sign that your device is producing genuine near infrared light at the correct wavelength. If the near infrared LEDs appeared bright red, it would suggest they are not emitting true 850nm light.
To confirm your device is working, switch to near infrared only mode in a dark room and look at the device through your phone camera. Most phone cameras can detect near infrared light and will show a faint purple or white glow from the LEDs that appear dark to the naked eye.
Yes, the Target Light 2.0 can be used near the eyes in any of its three modes, but the recommended distance varies.
In red mode (660nm), position the device 20cm or more from your face for 5 to 10 minutes. You can judge the intensity by how bright the light feels on your eyes. If it feels too bright, simply move the device further away. Eyes can be open or gently closed.
In combined mode or near infrared mode, we recommend a minimum distance of 65cm (roughly arms length) from your face. The near infrared wavelength (850nm) is invisible to the eye and delivers significantly more energy than the red LEDs, so it is difficult to gauge the intensity by looking at the device. At arms length the exposure is gentler and more comfortable for the eyes. In this scenario, less is more.
The device has been independently tested for flicker by the UK Lighting Industry Association and confirmed as flicker free, which is particularly important for use near the face and eyes.
If you have specific eye concerns or pre existing conditions, we recommend consulting a healthcare professional before starting.
Flicker refers to rapid, often invisible fluctuations in light output caused by the way some LED devices handle electrical current. Even when flicker is not visible to the eye, it can contribute to eye strain, headaches, and general discomfort, particularly during close range use.
The Target Light 2.0 has been independently tested by the UK Lighting Industry Association and confirmed as flicker free, with a flicker percent of just 0.3% and a flicker index of 0.
Many competitors do not publish flicker data at all, so if you are comparing devices, we recommend asking for independently verified flicker test results.
All irradiance figures for the Target Light 2.0 were measured by the Lighting Industry Association (LIA) Laboratory in the UK, an independent accredited testing facility.
The testing was conducted using a Bentham IDR300 double monochromator to standard EN 62471:2008, and the full results are published in LIA Report P10145A. Both the 660nm red and 850nm near infrared wavelengths were measured separately at seven distances from 10cm to 150cm.
We provide individual wavelength readings and combined totals so you can see exactly what the device delivers in each mode at your preferred treatment distance.
Many red light therapy brands publish only a single irradiance figure at one distance, often measured in house. We believe independent, dual wavelength, multi distance testing gives you a more honest and complete picture of what you are buying.
At 15cm treatment distance, the Target Light 2.0 measures 0.2 mG magnetic field and 73 V/m electric field using a TriField TF2 EMF meter.
The magnetic field is excellent at 0.2 mG — well under the Building Biology "no concern" threshold of 1 mG. This is particularly notable because the TL 2.0 has a built in cooling fan, which can sometimes contribute to higher magnetic readings. At treatment distance, the fan has no measurable impact.
The electric field reading of 73 V/m is elevated compared to our panel devices, which is typical of mains powered handheld products where the power supply sits close to the light source. Typical household electric fields range from 1 to 100 V/m in most living spaces, so the TL 2.0 falls within the upper end of normal domestic levels. If you are specifically trying to minimise electric field exposure, the battery operated Target Light 3.0 produces zero detectable EMF across all measurement modes.
It's worth bearing in mind that every electronic device you use in daily life produces some level of EMF — your phone, your TV, your kettle, your fridge, your Bluetooth headphones, your fitness tracker. EMF is a normal part of modern life and virtually impossible to avoid entirely. The additional EMF exposure from a red light therapy session is small in the context of everything else you're already exposed to, and we believe the wellness benefits of consistent use far outweigh any concern about the modest EMF levels involved.
Trusted since 2017
The UK's original red light therapy brand, supporting customers across the UK and Europe
365 day trial
Try any panel or handheld device for a full year, risk free
Over 10,000 customers
Real results from real people across the UK and Europe
Free Zoom onboarding
Every order includes a free personal consultation to help you get the most from your device
