re: #139 Rightwingconspirator

My wife grows orchids under lights. Various species. We think the grow lights are a waste of time and money. Daylight balanced at the same lumens (or often easily higher as the dense purple paint cuts lumens) does at least as well.

I have no hard and fast opinions, but I will note that the huge greenhouse growers in the Netherlands and elsewhere like them. Purple paint? The purple is from LEDs that are tuned for that frequency.