So... I measured the intensity of my shop lights. About 1000 watts per square meter at the light, which is the strength of sunlight during summer. The #UV index was a bit high at 8, compared to about 5 on a summer day. I doubt it's the same spectral UV distribution as sunlight and likely mostly UV-A, not UV-B required for vitamin-D production. At the bench, the visible light is a more reasonable 70 watts per meter and UV index is only 1. I probably should protect myself from the ionizing short rays as they do stress the living cells on my body.
But on the bright side, these lights may have completely cured my #nearsightedness, which was nearly disabling a year ago. From what I understand, bright light helps activate #dopamine which is required for the eye to communicate with itself and do eye things. I have no problems focusing when it's this bright in here! A year ago, it was dark in here and my blood tests showed high #prolactin, which is the opposing hormone of dopamine. I might test it again as good light seems to help.
The lights are powered from the 48 volt solar batteries through a current limiting DC-DC buck boost converter, which is rated for 40 amperes, but set at 8 amps, for about 350 watts. The light strip were from surplus industrial lighting. From what I understand, LED light output is typically much more efficient when a power supply pulses them at high currents, but this filtered DC is fine. I'll have to check the data sheets to see if that's still true like it was decades ago.
