# The infrabed

I have been thinking about creating an infrabed, and have been designing one. So far my design has a 2 foot by 6 foot base, with 69 LED strips (alternating between 850nm and 940nm strips) that are placed in 9mm x 550mm routed out channels. This uses 8 of the rolls of LED strips from the same source noted here. There should be about 30 LEDs per strip, and consequently if @Scottie 's deliberations are correct
Anyway, one 5m strip actually consumes 12V, 1.24A per 5m (not 2A as stated). When you cut the sections shorter to 60cm as we did, each strip uses just under 200mA.
So that means each 60cm strip is ~0.2A, or 1.67A per 5m since there are less losses when the strips are cut shorter (which is good).
(1.24A/5m, or 1.67A/5m?) and using 1.67A/5m = 0.187A/550mm. 13A for 8 rolls @ 5m/roll. Going with two power supplies, 7A each, maybe something like this.
I would use the rails idea, and alternate supplying the LED strips: on one side, the one power bar for the yellow backed 850nm and on the other side the other power bar to supply the white backed 940nm LED strips.
Initially I was going to go with 2 - 2'x6' plywood sheets with 4 rolls of LED strips on each sheet, with the human as the meat of the vertical sandwich.
But after considering using UVB lighting to provide 'sun exposure'(Vitamin D) during the winter especially, I went with doubling the IR LED strips on one piece of wood, and using clamped lights (something like this) to hold the UVB bulbs. The idea is that while you were getting IR on one side, you would be getting UV on the other side. Plus this configuration allowed me to double up on the thickness of the wood, as I had started out with 2 - 2'x6' pieces, and now they'll be glued together, with possibly square holes cut into the backing piece to hold the power supplies.
The whole unit is designed to be used vertically, you stand leaning on the 'bed' which is at a slight angle against the wall, for about 7 minutes on your front, and 7 minutes on your back.
I haven't built it as yet, and I am putting this out here for critical and creative input.
What have I missed?
Oh, I should say there will be a frame around the outside of the wood, that will hold a thin sheet of acrylic to protect the LED strips, and make it easier to clean between sessions.

It sounds like a good idea since, according to Pollack (the 4th phase of water), it is light and in particular infrared radiations that transform liquid water in structured water.
Yes, that is how Pollack demonstrated how IR light creates structured water. The problem with doing that outside of the body (in a glass of water under IR light) is I am not sure it can be useful, can it make the transition through the digestive systems to be of any use? For example I have been drinking ozonated water, but I understand its usefullness is limited as my bodies biochemical processes pretty quickly detach that extra oxygen. I suspect the same thing could happen to drinking structured water For sure though, our body 'makes' structured water inside it, in our cells, and external IR light shining through the skin into the body is one of the mechanisms! I think voltage potentials across membranes is another.

But after considering using UVB lighting to provide 'sun exposure'(Vitamin D) during the winter especially, I went with doubling the IR LED strips on one piece of wood, and using clamped lights (something like this) to hold the UVB bulbs.
I don't know if using UV is a good idea.

It's a good one!
You might be careful for :
1) the range of UVB: it must be between [280 - 315 nm ] Only UVB helps in vit D production.
2) the duration of exposition: no more than 15 min (20 min for non-white skin)

I even bought an UVC, it's germicide, so not for me but for disinfecting instead of using chimic disinfectants and it will maybe be usefull in the context of virus outbreaks.

[...]
I haven't built it as yet, and I am putting this out here for critical and creative input.
What have I missed?
Oh, I should say there will be a frame around the outside of the wood, that will hold a thin sheet of acrylic to protect the LED strips, and make it easier to clean between sessions.
Hi anartist! Your idea is very good! I would just suggest using red light (660nm) + NIR (850nm) rather than FIR (your 940) as FIR is less effective than NIR from what I understood.
I began to search for products in order to build my own infrabed but I gave up because I don't have skills in electricity field and didn't manage to find the little ampoules I wanted precisely. In my project, I wanted to line the wood (inside surface) with aluminium foil in order to reflect and spread more light within the bed.
I also searched for UV and the right range is [280 - 315 nm ] i.e. UVB, the range for vitamin D.

So, a wooden bed doubled inside by aluminium foil, with red light (660nm) + NIR (850nm) + UVB (311nm), is IMO the best option.
I indicate these precise wavelengths because they are those that I found after reading and searching a lot on the web particularly chinese websites (production factory of electrical stuff for companies) at the time when i wanted to make my own bed. I don't doubt that with consistance and time one can find the precise products.
Hope this helps.

I recently finished a helpful book giving an overview of the benefits of red light therapy and how to go about it with regard to dosing, the suitability of what's currently on the market, etc. The book is called Red Light Therapy, by Ari Whitten, who is an energy and fatigue specialist with a BSc in Kinesiology, a PhD in Clinical Psychology, and 2 advanced certifications from the Nat’l Academy of Sports Medicine. He hosts a podcast on his website.

Bioactive Light and Human Health
Whitten does a brief overview of the most well known types of bioactive light in humans:

Blue light (450 - 495 nm) —sets the circadian rhythm in our brain, which in turn regulates numerous different neurotransmitters and hormones. Increases cortisol.
UV light (300-400 nm) —allows us to synthesize vitamin D from the sun.
Far-infrared (>1000 nm)—acts to heat up our cells (this is the part of the sun’s spectrum that you feel as heat) which stimulates changes in cell function, as well as circulation changes.
Red light (630-680 nm) and near-infrared light (800-880 nm)—act on the mitochondria in our cells to stimulate increased cellular energy production and stress resilience.

This is an incomplete list of all the effects of each obviously. Elliot has a more comprehensive video on this HERE. A good interview with Dr Alexander Wunsch discusses more about the benefits of dosing sunlight for vitamin D is available HERE. Anyway back to the book and its discussion about mal-lumination.

List of diseases linked to lack of sunlight:
-neurodegenerative diseases like Alzheimer's, dementia, Multiple Sclerosis, Parkinson's.
-cancer
-obsesity, diabetes, and metabolic syndrome
-heart disease.

List of diseases or negative outcomes linked to artificial light exposure at night:
-cancer
-depression
-fat gain, obesity, diabetes, metabolic syndrome
-insomnia and poor sleep quality
-mood disorders

While many light frequencies have various beneficial effects when in the right proportion, the book focuses on Red and NIR light (obviously) and how they specifically benefit the human body.

Molecular Mechanisms of Red and NIR Light's Action
Red and NIR light chiefly benefits us through two mechanisms: increasing mitochondrial energy production, and hormetically up-regulating the cell's antioxidant and antinflammatory defense systems. The author also mentions two poential mechanisms which are less definitvely proven but exist as possibilities.

Increasing Mitochondrial Energy Production

R/NIR light increases mitochondria energy production by being absorbed by cytochrome c oxidase: one protein complex in the electron transport chain that converts oxygen to water in order to drive ATP production in the cell. The performance of cytochrome c oxidase can often be inhibited by increased amounts of nitrous oxide in the cell, which is an essential signalling molecule but which binds and inhibits cytochrome c oxidase's ability to bind and reduce oxygen. Red and NIR light essentially knocks nitrous oxide off of cytochrome c oxidase, allowing it to properly bind and reduce oxygen. Shining rea and NIR light on the body directly improves the mitochondria's ability to generate energy for the cell.

Hormetic Up-Regulation of Cytoprotective Genes
Red and NIR acts as a low-level stressor on the mitochondria also, by increasing the amount of reactive oxygen species therein. This causes the mitochondria to signal to the cell nucleus to up-regulate antioxidant and anti-inflammatory pathways to quench the free radicals and inflammation. This results in a net increase in the activity of these these protective measures, improving the cell's ability to deal with similar stressors. Some have even called red and NIR light an exercise mimetic, because exercise itself stimulates these same cellular pathways in response to reactive oxygen species and inflammation.

Fourth Phase of Water (?)
One of these was related to Jack Pollack's on the fourth phase of water, and that red and NIR light may charge the structured water battery in cells and tissues for whatever kinetic or chemical reactions they facilitate.

Photosynthesis (?)
At least one study has found that mammals are capable of taking up chlorophyll metabolites into the mitochondria and using them to generate ATP. This mechanism is chiefly involved in the regeneration of CoQ10: a prominent antioxidiant and cofactor in facilitating electron transport in the mitochondria. When doing this work it converts from its active and reduced form (ubiquinol) to its oxidized and inactive from (ubiquinone), which itself needs to be regenerated back into ubiquinol to help the mitochondria or quench free radicals. It was found that mixing the inactive form with chlorophyl metabolites (the kind the mitochondria incorporate) and shining red or NIR onto it converted CoQ10 back into its active form. What's also interesting is that CoQ10 can be transported via the bloodstream to cells and tissues deficient in it. This allows the regenerated CoQ10 in our skin and organs closer to the skin (given they receive healthy amounts of R/NIR light) to permeate deeper tissues and so improve the mitochondrial function of more of our body.

Effects of Red and NIR Light
I'll use his own words here:

Cellular Benefits
Inflammation: One of the most important cellular mechanisms that red/NIR light have is their effect on inflammation pathways. It appears to do this through inhibition of inflammatory prostaglandin PGE2 production and expression of COX-1 and COX-2, as well as inhibition of the NF-kB pathway. The net effect: Reduced inflammation.

Cytoprotection: Various studies have shown that red/NIR light can help protect cells from dying after being exposed to various toxins (e.g. methanol, cyanide, etc.). It appears to have cell-protective effect in some instances.

Proliferation: Some types of cells (e.g. skin cells, bone cells, cells that line blood vessels, etc.) have been shown to grow and replicate faster with exposure to red/NIR light.

Migration: Some types of cells (e.g. tenocytes in tendons or melanocytes in skin) need to actually move to get to the location they’re needed. Some research has shown that red/NIR light can stimulate this.

Protein Synthesis: Red/NIR light can also stimulate cells (e.g. skin cells, bone cells, etc.) to produce more proteins (e.g. collagen). Stem Cells: Stem cells are apparently even more sensitive to red/NIR light. Red/NIR light has been shown to positively affect growth, movement, and viability of stem cells. This may be relevant to both stem cells already present in our body, as well as in the context of stem cell therapy.

Tissue Benefits
Muscles: Numerous studies have shown that red/NIR light affect muscle performance, recovery from exercise, and adaptations (i.e. enhanced strength, endurance, muscle growth, fat loss) to exercise. (These studies are discussed in this book in later sections.)

Brain: Red/NIR light has been shown to benefit brain function as well. Studies have shown improvements in cognitive performance and memory, improved functioning after traumatic brain injury, improved mood, as well as improvements in certain neurological diseases (e.g. Alzheimer’s disease). The improvements in mitochondrial function, reduction in inflammation, and increased Brain-Derived Neurotropic Factor (BDNF) likely all play a role in enhancing neuron health.

Nerve (Pain): Some studies have shown that red/NIR light can dull pain due to blocking conduction at nerve fibers. Anti-inflammatory actions, as well as blocking of substance P, likely play a role in this effect.

Healing (Bones, Tendons, and Wounds): Numerous studies have shown that red/NIR light can stimulate and accelerate healing of numerous types of injuries—from tendon/muscle/ligament tears to bone fractures, and skin wounds. This is likely by affecting local growth factors involved in cellular repair, as well as effects on the inflammatory processes.

Hair: Red/NIR light is also used in the context of hair re-growth, and numerous studies have shown it to be effective for this purpose. This is likely due to local blood vessel dilation and anti-inflammatory effects.

Skin: Numerous beneficial effects on skin wrinkling and laxity, cellulite, collagen production and other aspects of skin health have been found. Anti-aging of the skin is one of the most common uses for red/NIR light.

Fat: The exact mechanisms of how this happens are still debated among researchers, but numerous studies have shown that red/NIR light can stimulate the release of fatty contents from fat cells, and ultimately, lead to body fat loss.

The extent to which the mitochondria's function affects our overall health cannot be overestimated, and the same goes for red and NIR light exposure:
-Anti-aging effects in the skin and hair (enhancing collagen synthesis, production, and elastin production for youthful skin and dramatically reducing cellulite)
-Lowering inflammation
-Enhancing fat loss
-Enhancing physical performance and muscle recovery afterward
-Boosting testosterone
-Speeding wound healing
-Spurring neurogenesis in the human brain, strengthening synapses, spurring brain cell growth
-Helping prevent cognitive decline
-Reducing waist circumference and liberating fat from cells so it can be burned again
-Enhancing physical performance and muscle recovery afterward
-Enhancing fertility
-Combatting gingivitis and promoting healthy gums
-Enhancing stem cell implantation and proliferation63 Enhancing gland health from the thyroid to the lymphatic system
-Clearing skin for sufferers of acne, rosacea, eczema, psoriasis Improving eye health
-Fighting chronic fatigue and fibromyalgia
-Potentially helping the body to fight cancer (in tandem with chemotherapy)6
-Removing wrinkles, lines, and veins on the surface of the skin
-Increasing energy
-Improving the appearance of scars
-Killing pain
-Protecting cells against damage from stress

The author devotes large sections toward talking about the specific clinical benefits of red and NIR light on fibromyalgia, hashimoto's disease, cancer, bone healing, inflammation-linked diseases, eye health, depression/anxiety, fat loss, and many others.

Guide to Dosing Red Light Therapy

A Brief Note on the Bimodal Response

The most important point when it comes to dosing red and NIR light is that the human body has a biomodal response to R/NIR dosing. Too little produces few effects, and too much can actually reverse the beneficial effects and be inhibitory or harmful. Harm can come from excess R/NIR light via excess production of reactive oxygen species, excess shunting of nitrous oxide from the mitochondria into other cellular pathways, and may induce apoptosis in weak or ailing cells which may have recovered. So there is a sweet spot to dosing that one needs to achieve for optimal benefits.

The most important things to consider for dosing are
-distance from the light
-wavelength of the light
-actual wattage of efficacious frequencies (which can be quite different from claimed -wattage)
-size of the device or treatment area

Power and Dosage
Dose = power density x time, which is in units of energy (joules). Eg, 100 W/cm^2 shone for 10 seconds gives 1 J/cm^2. This energy will be distributed in a decreasing gradient from the skin inwards.

This energy dosage decreases with distance from the light source. A 100 W/cm^2 light source may drop to 90 at 6", 60 at 12", 40 at 18", etc. Closer allows a higher dosage over a small area, and farther allows a lower dosage over a wider area. Most red and NIR devices provide information about the wattage per cm^2 based on distance. A power of at least 30 mW/cm^2 is recommended by the author at least, and often 100mW/cm^2 at 6" away is optimal, since doing it from farther away offers more energy. A device that emits a quarter of the irradiance will require using it for four times as long to produce the same effect.

Dosing for Skin
The optimal dosage is between 3 and 15 joules. Because of the low dosage required, it is better to use from farther away when using high power devices, so as not to exceed to maximum beneficial dose. On one 100W/cm^2 device it works out roughly to 1-4 minutes from 12" away, 1.5-5 minutes from 18" away, or 2-8 minutes from 24" away.

Dosing for Deeper Tissues and Organs
This may vary a lot more, depending on the depth and obstructions, but the author recommends 10-60 J. To emphasize, it is better to be conservative since the immediate large benefits give way to diminishing returns, and then inhibition. The higher dosing requirements also mean that a closer, high-powered light is recommended such as the 100 W/cm^2 device at 6" for 2-7 minutes or at 12" for 5-10 minutes.

Penetration Depth
Penetration depth varies with tissue type (denser tissues absorbing more light), power of the device, its distance from the body, and wavelength. For the latter, it is measured by the distance within the body after which the light intensity decreases to 1/e (~37%). For red and NIR light this technically is 3-6mm, but since the power level decreases fractionally the light still produces benefits as deep as 5cm into the body. In terms of practical benefits they can still be conferred at 2 inches of depth.

In one study it was found that NIR penetrates much deeper than red light, and was found to penetrate as much as 4cm into the head, passing the skull and meninges and reaching the brain. Because red light does not penetrate as deeply as NIR, it is better suited for delivering energy to the skin, where most of the energy of red light will be absorbed. NIR light is better for reaching deeper into organs and muscles, since less of it is absorbed at the skin level.

Other differences between red and NIR light:
-Red light is visible to the human eye.
-NIR typically has much stronger irradiance per LED bulb than red.
-most companies charge more for having more NIR LEDs than a mixture of NIR and red LEDs. Pure red lights are often cheaper.

Most red light therapies of a mixture of the two types, but having a specific aim lets you fine tune which frequency range you can best use: red (630-680 nm) or NIR (800-880 nm).

A Word on Infrared Lamps
Many heating IR lamps (1500K) contain some red and NIR light, but since that is not the chief purpose of these devices a much smaller percentage of their power output is in the 630-680 and 800-880 nm therapeutic ranges - sometimes as low as 15%.

Recommended Devices
Whitten says outright that it is better to invest in medium- or large-size devices, since their power and spread will make dosing the body much easier. He had a top 5 list, and said he arranged discount codes with manufacturers for readers interested in buying, so FWIW:

His recommended medium devices:
-Red Rush360 by RedTherapy.co (360 watts, 100mW/cm^2 at 6", 16.3" tall by 10.6" wide, \$450)
-BIO-300 by Platinum Therapy Lights (300 watts, almost 100mW/cm^2, 19" tall by 9" wide, \$450
-Joov mini (which on paper is less powerful and more expensive than the others so I'm not sure why he recommended it, other than it's an old brand with at least a well established reputation.)

His recommended larger devices:
-BIO-600 by Platinum Therapy Lights (600 watts, over 100mW/cm^2, 36" tall by 8" wide, \$750
-Joov Original Light by Joov (300 watts, about 70mW/cm^2, roughly same dimensions as BIO-600, \$1000

Full body devices:
-Joov Max by Joov (960 watts, 4.5' x 16", \$2400-\$3000 )
-setting up two Red Rush 360s or Platiunum BIO-300s and using them side-by-side

Some misinformation abounds stating to the effect that only laser R/NIR lights are effective. This came about because many studies have ran tests using low level laser therapy. Over 250 studies have shown LEDs have been found to be just as effective.

The best time of day to do it is based on aims. The time of the day for the most part does not matter, and the benefits are more about getting an edge before an activity.
-for cognitive benefits, at the start of the day
-for enhancing physical performance, 5-60 minutes before the activity
-for fat loss or muscle gain from exercise, before or after
-to speed recovery, after

Rates of improvement based on consistent use of R/NIR light
-pain; 20 minutes
-cuts or injuries; variable (heals much faster)
-hair loss; several weeks or months
-arthritis, a few weeks or months
-cellulite reduction; a few months
-wrinkle reduction and anti-aging; a few weeks

While benefits to eye health have been found for exposure to R/NIR light using LEDs, using a laser light is a very bad idea. Aside from that excessive exposure may cause the same drawbacks as other tissues vis-a-vis the bimodal response. Less than 5 joules is more than a suitable dose for eyes.

R/NIR usually does not penetrate through clothes, so get in your nickers or the birthday suit if using a full-body light.

For pregnant women, there is insufficient data on the effects of R/NIR light on the fetus. In theory other parts of the body should be okay (consult your doctor!)

If you notice any strange or negative effects, including fatigue, lower the dosage.

The book on the whole made me curious about how to quantify the power of the infrabed and its LED array, to see where it fit with regard to the recommended dosages and so on. I've also decided to obtain some chlorophyll supplements and see if it makes a difference in red light therapy.

I would just suggest using red light (660nm) + NIR (850nm) rather than FIR (your 940) as FIR is less effective than NIR from what I understood.
Hi Nature. According to many sources, including Elliot Overton, NIR is from 760-1400nm. Since my LEDs are 850 and 940nm, I think both LEDs are NIR. UVC is below 290nm, UVB is between 290 - 320nm, and UVA is between 320 - 400nm. My UV lights say they produce between UVA and UVB, at 12" UVA-150uW/cm2, UVB-25uW/cm2(apparently 8IUVitD3/min)
Thanks for the feedback!

Thanks for the info from Ari Whitten whitecoast
his book is available here also, as a pdf

claimed power density of LEDs
4,800mW/80cm2=60mW/cm2
actual power density could be 30-45mW/cm2 (50-75% of claimed)

The dose you want to shoot for is between
3–50J/cm2 .
45mW/cm2 x Y-sec x 0.001 = 3J/cm2 0.045 x Y = 3 Y=67 sec=1 min 7 sec
30mW/cm2 x Y-sec x 0.001 = 3J/cm2 0.03 x Y = 3 Y=100sec = 1min 40sec
45mW/cm2 x Y-sec x 0.001 = 50J/cm2 0.045 x Y = 50 Y= 1,111 sec = 18min 31 sec
30mW/cm2 x Y-sec x 0.001 = 50J/cm2 0.03 x Y = 50 Y=1,667sec = 27min 47sec

for the skin we want a relatively low overall dose on each area of skin, of roughly
3-15J/cm2

for treating deep tissues, you want bigger doses and you want higher power density (light intensity) for optimal effects. You want doses of 10-60J/cm2

Dose = Power Density x Time
mW/cm 2 x time (in seconds) x 0.001 = J/cm 2
SKIN
45mW/cm2 x Y-sec x 0.001 = 3J/cm2 0.045 x Y = 3 Y=67 sec=1 min 7 sec
30mW/cm2 x Y-sec x 0.001 = 3J/cm2 0.03 x Y = 3 Y=100sec = 1min 40sec
45mW/cm2 x Y-sec x 0.001 = 15J/cm2 0.045 x Y = 15 Y=67 sec=5 min 33 sec
30mW/cm2 x Y-sec x 0.001 = 15J/cm2 0.03 x = 15 Y=500sec = 8min 20sec
So for the skin, it looks like from 1 minute(for 3 J) to 8 minutes(for 15 J)

DEEP TISSUE
45mW/cm2 x Y-sec x 0.001 = 10J/cm2 0.045 x Y = 10 Y=222sec = 3min 42sec
30mW/cm2 x Y-sec x 0.001 = 10J/cm2 0.03 x Y = 10 Y=333sec = 5min 33sec
45mW/cm2 x Y-sec x 0.001 = 60J/cm2 0.045 x Y = 60 Y= 1,333sec = 22min 13sec
30mW/cm2 x Y-sec x 0.001 = 60J/cm2 0.03 x Y = 60 Y= 2,000sec = 33min 20sec
for deep tissue we'd need 3.75 minute (for 10 J) to 33 minutes (for 60 J)

Ari Whitten talks about distance from the light source as a factor.
Since the skin will be almost directly on the LED light source, I didn't factor in distance from the light source.
Since I have almost doubled the density of LEDs compared to the built one at le Ferme/Chateau
an exposure time of 8 minutes each for the front and back seems to fit.

Thanks for the info from Ari Whitten whitecoast
claimed power density
4,800mW/80cm2=60mW/cm2
actual power density could be 30-45mW/cm2

The dose you want to shoot for is between
3J/cm 2 – 50J/cm 2 .
for the skin we want a relatively low overall dose on each area of skin, of roughly
3-15J
for treating deep tissues, you want bigger doses and you want higher power density (light intensity) for optimal effects. You want doses of 10-60J

Dose = Power Density x Time
mW/cm 2 x time (in seconds) x 0.001 = J/cm 2
SKIN
45mW/cm2 x Y-sec x 0.001 = 3J/cm2 0.045 x Y = 3 Y=67 sec=1 min 7 sec
30mW/cm2 x Y-sec x 0.001 = 3J/cm2 0.03 x Y = 3 Y=100sec = 1min 40sec
45mW/cm2 x Y-sec x 0.001 = 15J/cm2 0.045 x Y = 15 Y=67 sec=5 min 33 sec
30mW/cm2 x Y-sec x 0.001 = 15J/cm2 0.03 x = 15 Y=500sec = 8min 20sec
45mW/cm2 x Y-sec x 0.001 = 50J/cm2 0.045 x Y = 50 Y= 1,111 sec = 18min 31 sec
30mW/cm2 x Y-sec x 0.001 = 50J/cm2 0.03 x Y = 50 Y=1,667sec = 27min 47sec

DEEP TISSUE
45mW/cm2 x Y-sec x 0.001 = 10J/cm2 0.045 x Y = 10 Y=222sec = 3min 42sec
30mW/cm2 x Y-sec x 0.001 = 10J/cm2 0.03 x Y = 10 Y=333sec = 5min 33sec
45mW/cm2 x Y-sec x 0.001 = 60J/cm2 0.045 x Y = 60 Y= 1,333sec = 22min 13sec
30mW/cm2 x Y-sec x 0.001 = 60J/cm2 0.03 x Y = 60 Y= 2,000sec = 33min 20sec

Hi Nature. According to many sources, including Elliot Overton, NIR is from 760-1400nm. Since my LEDs are 850 and 940nm, I think both LEDs are NIR.

They are all NIR, but the various wavelengths of NIR have different sized physiological effects, as the two diagrams from Red Light Therapy show. Cytochrome C Oxidase receives the most activation at the 660 and 850 nm peaks, which are the ballpark wavelengths most measured health benefits cluster around, and why most regulated red/NIR light medical devices use those frequencies.

Hi Nature. According to many sources, including Elliot Overton, NIR is from 760-1400nm. Since my LEDs are 850 and 940nm, I think both LEDs are NIR. UVC is below 290nm, UVB is between 290 - 320nm, and UVA is between 320 - 400nm. My UV lights say they produce between UVA and UVB, at 12" UVA-150uW/cm2, UVB-25uW/cm2(apparently 8IUVitD3/min)
Thanks for the feedback!
Sorry, yes 940 is in the NIR range. Near the high range, thus my mistake. For UVB my source is lighly different but it is rather the same.
So, you opt for 2 NIR?
Red light (660) has interesting effects. NIR goes in deep tissues and red is more superficial (excellent for skin and connective tissues). That's why I think it's more interesting to associate 660 + 850
+ UVB, with 3 buttons, 1 for each row of light, in case one wants to do just 1 kind of lighttherapy, or an asociation of 2 or 3 of these lights.

Sorry, yes 940 is in the NIR range. Near the high range, thus my mistake. For UVB my source is lighly different but it is rather the same.
So, you opt for 2 NIR?
Red light (660) has interesting effects. NIR goes in deep tissues and red is more superficial (excellent for skin and connective tissues). That's why I think it's more interesting to associate 660 + 850
+ UVB, with 3 buttons, 1 for each row of light, in case one wants to do just 1 kind of lighttherapy, or an asociation of 2 or 3 of these lights.
I did not really opt for two NIR. I ordered one, and then noticed it was a range, so I asked them for 850nm, but was told they had already been shipped, and were 940nm. So I ordered a second set and asked that they be 850.
I was going to have one power supply for the 850nm, and another for the 940nm, so I could only power the 850, or the 940, or both.
Thanks for the great chart above, delineating the health affects according to the frequency. I notice 850 only shows for Oral health and Exercise performance, and 940 for Oral health. I think I have to go with what I have, and think that some energy will have a good effect.

Thanks for the great chart above, delineating the health affects according to the frequency. I notice 850 only shows for Oral health and Exercise performance, and 940 for Oral health. I think I have to go with what I have, and think that some energy will have a good effect.
Thanks @whitecoast for the chart, I notice it is based on Cytochrome C Oxidase, which according to Wikipedia
"It is the last enzyme in the respiratory electron transport chain of cells located in the membrane. It receives an electron from each of four cytochrome c molecules, and transfers them to one dioxygen molecule, converting the molecular oxygen to two molecules of water. In this process it binds four protons from the inner aqueous phase to make two water molecules, and translocates another four protons across the membrane, increasing the transmembrane difference of proton electrochemical potential which the ATP synthase then uses to synthesize ATP. " So it is important, looks like it may be, at least in part, responsible for the creation of structured water!

For the appropriate dosing level for UV for vitamin D production, in addition to the factors listed above for red/NIR light skin pigmentation also needs to be taken into consideration. According to this article (Sensitivity to Sunburn Is Associated with Susceptibility to Ultraviolet Radiation–Induced Suppression of Cutaneous Cell–Mediated Immunity | Journal of Experimental Medicine | Rockefeller University Press) the minimum erythema (i.e. sunburn) doses for people with type I/II and III/IV skin are 3.2 and 5.5 J/cm^2 respectively.

In the interview with Wunsch I linked above he recommends receiving no more than somewhere between 50 and 75 percent of your sunburn dose. So for super white people and sorta average white people that is 1.6-2.4 and 2.75-4.13 J/cm^2 respectively. So we're talking about minuscule doses here compared to red/NIR light. So I definitely would recommend having the UV and red/NIR as separate switches in your design. As red/NIR light improves cellular resilience against UV damage, it could be the best of both worlds doing red/NIR prior to UV. FWIW.

For the appropriate dosing level for UV for vitamin D production, in addition to the factors listed above for red/NIR light skin pigmentation also needs to be taken into consideration. According to this article (Sensitivity to Sunburn Is Associated with Susceptibility to Ultraviolet Radiation–Induced Suppression of Cutaneous Cell–Mediated Immunity | Journal of Experimental Medicine | Rockefeller University Press) the minimum erythema (i.e. sunburn) doses for people with type I/II and III/IV skin are 3.2 and 5.5 J/cm^2 respectively.

In the interview with Wunsch I linked above he recommends receiving no more than somewhere between 50 and 75 percent of your sunburn dose. So for super white people and sorta average white people that is 1.6-2.4 and 2.75-4.13 J/cm^2 respectively. So we're talking about minuscule doses here compared to red/NIR light. So I definitely would recommend having the UV and red/NIR as separate switches in your design. As red/NIR light improves cellular resilience against UV damage, it could be the best of both worlds doing red/NIR prior to UV. FWIW.
good points. Definitely the UV lights will be on a separate switch and the 850nm IR and 940nm IR will have separate switches also.
The output from the UV lights is pretty small: UVA-150uW/cm2, UVB-25uW/cm2 (which translates to UVA-0.15mW/cm2, UVB-0.025mW/cm2), orders of magnitude less than the IR flux. I sort of thought it would be low, based in the rated 8IU/min (0.2mcg/min) for an 8 minute dose of 64IU or 1.6mcg D3. That is a good point about IR helping with exposures to UV, and I suppose that is what happens under sunlight, the 2 frequencies (IR and UV) seem to support each other in that they are both beneficial when working together, and not so beneficial when utilized separately (especially it seems, UV). IR brings about Nitric Oxide and vasodilation which brings more blood to the skin surface where it can be irradiated by UVB to help produce VitD from chloresterol. A pretty simplistic Rube Goldberg explanation, but it gives one an idea.