[cowsaymoo]

The prototype came with a power supply that is set at 24V, 5A and consumes 90W when running. Not sure how the control circuits work but its pretty simply operated with a 3P2T switch for 650nm/Off/850nm. Each module contains a fan cooled array of LEDs behind a plastic lens. I think it has some thermal shut off protection circuit as well.

I just dug out the spec sheet for the other device and you're right. It says "LED Power Class 1800W", but lists power consumption as 350W.

I really like it's potential to improve the right kind of symptoms when applied correctly and I'm also wary of people with bottom line incentives filling in any scientific uncertainty with miracle cures. But I agree, it's definitely worth using. It's a one time purchase with no side effects, so the worst case risk is just disappointment.

[throwway120385]

It would probably be 1800W continuously but is pulsed and the duty cycle probably limits the power to 350W.

[b112]

Can light penetrate the skull bones though?

[lukeinator42]

yes, and you can even use infrared spectroscopy to infer brain activity via the bold signal: https://en.wikipedia.org/wiki/Functional_near-infrared_spect...

[ankitml]

infrared, yes. Although depends on skin colour wrapping the skull. Melanin absorbs everything under the sun. It has very high absorption of UV but somewhat absorbs infrared too in this range of frequencies. Darker the color of skin, higher the melanin and higher the absorption by skin.

[energy123]

Yes

[Filligree]

Radio waves do with no trouble. Blue does not at all. Everything between is on a sliding scale; there are no qualitative changes until you get to ionising radiation.

Though there’s a bit in the middle where it matches the resonant frequency of water molecules, yes.