Thanks for the reply!
How many bulbs are you suggesting? More than two sounds a bit crispy for some of them, but maybe I just don't have a good hold on how quick light drops off.
How do I account for the differences in required light, then? Just closer/farther from the bulb? The reason I'm concerned more about it is because the 600fc number I see for African Violets seems to be given for growing under artificial lights for 16 hours or so. I do understand after doing some reading about it how light is additive that way -- kind of convenient too for those high light ones, too! (Might steal a piece of mom's older-than-me, growing outside, uncared-for cymbidum and put a spot on it if I can figure out what that singular plant would need, but that's a later project -- much later, heh). But still, is there that much of a variance between the center of the bulb and the end, assuming the center would be a nice 1000fc or so for the orchids? Do my AVs need little umbrellas?! Haha.
Really though, I just want to get it done right the first time and not make mods ($) later because a group is getting too much/little light. I just want to get in the right ballpark and if it turns out I have to somehow squeeze another 3 inches of height out of the rack or something to get stuff to not fry my plants 'cause my math was off, dangit, I'll find a way, heh.
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