These are pretty okay for $15 each if you can find use for two of them. I bought them at this price a while back and they’re effective and not broken yet.
I bought these from here and they are way too bright to have just inches away from the face even on the lowest setting. I can’t even use them. If anything this would be a whole room lamp if you need a cheap pair
@sum1 These simulate being outside in full sunlight well enough to reset your circadian rhythm. People who are really outside in full sunlight have their circadian rhythm reset without actually looking at the sun. So there is no need to look into the light, despite what marketing pictures frequently show. It is not clear if you even need to have your eyes open.
One double blind study demonstrated that bright green light on just the skin of the legs had a measurable effect on circadian rhythm. The test subjects taped large pads with green LEDs to their thighs before long flights. The pads also had electric heaters in them. The subjects could tell when the pads were on due to the warmth, but because the backs of the pads were opaque, they couldn’t tell if it was the LEDs or the heaters. The subjects also wore pants that would block the light. This was long ago, when green LEDs produced a lot of heat with the light, so they were not nearly as bright as sunlight.
This experiment showed that of light on a patch of skin has an effect on circadian rhythm without involvement of eyes, UV radiation, or the placebo effect. The experiment was only looking for a statistically significant effect. The light source was far from the full visible spectrum and not nearly as bright the sun. It wasn’t trying to get a therapeutically significant effect, just a measurable one.
Specs
Product: 2-Pack: Circadian Optics UV-Free Full Spectrum LED Therapy Lights
Model: B082P9JNWQ
Condition: New
How to Use
What’s Included?
Price Comparison
¯\_(ツ)_/¯
Warranty
90 days
Estimated Delivery
Monday, Feb 27 - Tuesday, Feb 28
Is UV not part of the full spectrum? I posit that you cannot simultaneously both have your cake and eat it, too, Circadian Optics!
These are pretty okay for $15 each if you can find use for two of them. I bought them at this price a while back and they’re effective and not broken yet.
I bought these when they were offered before. No idea if they work and I hope I haven’t burnt out my retinas. These suckers are bright.
I bought these from here and they are way too bright to have just inches away from the face even on the lowest setting. I can’t even use them. If anything this would be a whole room lamp if you need a cheap pair
@sum1 These simulate being outside in full sunlight well enough to reset your circadian rhythm. People who are really outside in full sunlight have their circadian rhythm reset without actually looking at the sun. So there is no need to look into the light, despite what marketing pictures frequently show. It is not clear if you even need to have your eyes open.
One double blind study demonstrated that bright green light on just the skin of the legs had a measurable effect on circadian rhythm. The test subjects taped large pads with green LEDs to their thighs before long flights. The pads also had electric heaters in them. The subjects could tell when the pads were on due to the warmth, but because the backs of the pads were opaque, they couldn’t tell if it was the LEDs or the heaters. The subjects also wore pants that would block the light. This was long ago, when green LEDs produced a lot of heat with the light, so they were not nearly as bright as sunlight.
This experiment showed that of light on a patch of skin has an effect on circadian rhythm without involvement of eyes, UV radiation, or the placebo effect. The experiment was only looking for a statistically significant effect. The light source was far from the full visible spectrum and not nearly as bright the sun. It wasn’t trying to get a therapeutically significant effect, just a measurable one.