THE CHROMA DIFFERENCE
74%
Of members felt a noticeable improvement in their mood since using the D-Light
65%
Of members no longer take any Vitamin D supplements after using the D-Light.
83%
Of members have recommended the D-Light to a friend or family member.
*Based on a survey including n=23 current Chroma customers evaluating self-percieved efficacy.
Engineered with wavelengths that support:
Precision Engineering
We combined narrowband UVB tuned to 297nm - the peak for vitamin D synthesis, with red and near-infrared light to counterbalance UV stress and support cellular repair. Then we added in 405nm violet to activate OPN5 & OPN3 non-visual photoreceptors. The result is a spectrum that works with your biology to support natural vitamin D levels and improved mood.
// Light Profile
850nm Near Infrared
760nm Near Infrared
670nm Deep Red
630nm Red
405nm Violet
297nm UVB
21%
21%
21%
10%
15%
12%
21%
21%
10%
15%
12%
// Component Lifespans
LEDS
ALUMINUM HEAT SINK
FANS
MILITARY SPEC WIRING
POWER SUPPLY
ALUMINUM HEAT SINK
FANS
MILITARY SPEC WIRING
POWER SUPPLY
80,000 hrs
∞ years
10+ years
10+ years
10+ years
∞ years
10+ years
10+ years
10+ years
The D-Light Spectrum
The D-Light delivers a focused spectrum of UVB, violet, deep red, and near-infrared light to stimulate key photoreceptors, support natural vitamin D production, and energize cells from surface to deep tissue. Every wavelength has been precisely selected for safety and year-round vitality.
NOTE: Reading taken at 8" from device.
Outshining the Competition
The D-Light supports your body’s natural Vitamin D production with targeted narrowband UVB, balanced with violet, red and near infrared light.
D-Light
UV Lamps
Supports Natural Vitamin D Production
🟢
🟢
🔴
Targeted Opsin activation (OPN 3, OPN 5)
🟢
🔴
🔴
Potent Red & NIR for safe UVB stimulation
🟢
🔴
🔴
Therapeutic Vitamin D doses in 30 seconds
🟢
🔴
🟢
Causes unnatural spikes in Vitamin D
🔴
🔴
🟢
Truly portable form factor
🟢
🔴
🟢
Absolutely flicker free
🟢
🔴
N/A
Backed by a 5-year warranty
🟢
Rarely
🔴
Frequently Asked Questions
How do I use my D-Light?
First, put on your safety glasses, this device produced a lot of UVB light and safety glasses are required. If others are in the room, please also have them use UV protective glasses. Never gaze into the device, even with UV protective glasses on. Close your eyes if the device passes over your face.
Use the D-Light at a distance of 6" to 8" slowly sweeping over your body to avoid thermal buildup or overexposure in one area. Start with only 30 seconds of total exposure spread over your whole body and slowly work upward day after day to a level that works well with your skin. Most people will find a good dose to be within 2-5 minutes but this depends heavily on skin type, diet, and your existing relationship with the sun.
As with any new stimuli, start small and work up over time to a level that's comfortable for you. Overexposure will cause a "sunburn"
UVB light does not penetrate clothing well, so it's best to use minimal clothing while using the D-Light device.
To treat the whole body at once, use the device at a distance of about 12" to 36" this allows the light to spread out and reduces the power density, so a longer session is possible. Even at a distance, start small and work up. More isn't always better and too much exposure will lead to a "sunburn".
How long will it take to see results?
It depends on your current vitamin D status, how often you use the D-Light, and how your body responds to UVB exposure.
For those with low levels, serum vitamin D can start to rise within 1-2 weeks of consistent use, though it often takes 6-12 weeks to fully replenish stores depending on baseline deficiency, skin type, and lifestyle factors.
Some people report feeling more energized or experiencing mood improvements within the first couple of days, especially if their low vitamin D was affecting them noticeably, while others see changes more gradually.
The key is regular exposure that delivers enough UVB to trigger meaningful vitamin D production.
How much Vitamin D will I produce?
The D-Light is estimated to generate >1000IU Vitamin D in ~30 seconds in type II skin at a distance of ~12".
As with most things, more is not always better, start with a very short dose and work up to an effective dose time and distance for your body.
ALWAYS USE UV BLOCKING EYE PROTECTION
Keep in continuous motion - don’t shine the light in one spot for too long and NEVER GAZE INTO THE DEVICE.
Why choose the D-Light?
Optimized for Vitamin D Synthesis: Our device is expertly designed to provide only the specific UVB wavelengths necessary for efficient Vitamin D synthesis, ensuring you get the most out of your sessions.
Comprehensive Skin Care: The D-Light goes beyond Vitamin D production. The inclusion of Red and NIR wavelengths ensures that your skin receives balanced care, leaving it protected and revitalized.
Effortless Integration: Incorporating the D-Light into your daily life is a breeze. Quick sessions offer a hassle-free way to maintain your Vitamin D levels, making it a smart investment in your long-term health.
Supporting studies:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5737833/
https://www.nature.com/articles/s41598-017-11362-2
https://www.hindawi.com/journals/ijp/2016/2734139/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4479368/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8597149/
How does the D-Light compare to fluorescent Vitamin D Solutions?
In contrast to popular fluorescent light solutions from the 60's with uncontrolled spectrum that degrade over time, we use narrow band UVB LEDs focused right at the thin spectrum responsible for Vitamin D production.
We also balance our UV exposure with a wide range of Red, Deep Red, and Near Infrared (NIR) light. These Red & NIR bands have been studied to make UV exposure much safer.
LEDs are also much more robust than fluorescent tubes, so there's nearly zero risk of broken glass.
With over 30,000 hours of life, the D-Light is designed to last many years if treated with care.
We also balance our UV exposure with a wide range of Red, Deep Red, and Near Infrared (NIR) light. These Red & NIR bands have been studied to make UV exposure much safer.
LEDs are also much more robust than fluorescent tubes, so there's nearly zero risk of broken glass.
With over 30,000 hours of life, the D-Light is designed to last many years if treated with care.
Is the D-light safe for daily use?
When used as directed, yes. The D-Light’s UVB output is precisely controlled and balanced with other wavelengths to support safety while maintaining effectiveness. Like natural sunlight, moderation is key, start with shorter sessions and increase gradually as your body adapts.
Is D-light portable? Can I travel with it?
Yes. Every D-Light comes with a travel case roughly the size of a small briefcase. Simply throw it your car and enjoy powerful light therapy where ever life takes you.
Do I need to use it on bare skin?
Yes. For UVB to trigger Vitamin D production, it needs to reach your skin directly. Clothing will block UVB, so we recommend exposing the area you’re treating, typically arms, legs, or torso, for best results.
Is it possible to tan or sunburn?
The D-Light’s UVB output is optimized for Vitamin D production, not for tanning. While it’s unlikely to cause noticeable tanning, overuse can still lead to mild redness and burning similar to spending a bit too long in midday sun. Stick to recommended session times to avoid overexposure.
How long will it take to get my order?
It depends on where you are. Orders processed here will take 5-7 business days to arrive. Overseas deliveries can take anywhere from 7-16 days. Delivery details will be provided in your confirmation email.
Can I use my D-Light worldwide?
Yes! Your D-Light is compatible with both 110/120 and 220/240 V, (adapter not included).
Some LEDs are not lit up, is my device broken?
Light below about 400nm and above about 700nm is invisible to the human eye. It's totally normal to not see all of the LEDs lit on your device. The LEDs in your D-Light are rated for at least 30,000 hours of life and if treated with care, the device is expected to last many many years.
Please don't gaze into your device. To further verify function, an inexpensive wall watt meter like the 'kill-a-watt" device can help you verify ~210 watts of power are drawn.
Is there support if I have questions?
Yes. Our team is always here for you. Whether it's setup help, usage tips, or deeper questions about red light therapy, we’re ready to support your recovery goals.
Simply contact us at hello@getchroma.co and we will respond within 24 hours.
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