Why use under-canopy lighting?

Probably should consult a plant biologist. From what i understand, the anatomy of a leaf makes any light not hitting the top of the leaf much less effective. The light penetration from the bottom is severely attenuated even if it can reach any chlorophyl or chlorplasts, whatever the phrasing/vocab is. inter-canopy lighting has merits, but light that hits the bottom of the leaf is making poor use of electricty and limited amount of photosynthesis is taking place, just as light that hits other green surfaces beside the top of a leaf is a very limited return, too... unless it's a palo verde tree. some sort string of lights, maybe a diode you attach to the petiole and it hovers a specific distance above each leaf that provides the proper dli for each and every leaft, lol.... it would look cool AF but who is putting in that much effort? if a commercial op uses this, it's just one more example of people that have the money to invest but too obstinate to listen to people with knowledge on relevant topics. A plant biologist would be useful here. The return on investment would be atrocious.

I have to agree with the rest on this. Underlighting in veg is a no from Me but side lights in flower is an idea that would accomplish something other than heat and cost. But I'm willing to be proven wrong.. Or send me some il do some runs and compare.

I would Take one or two for free to Review no Problem, just send Message

Why should I even think about a product when its distributor seems to be that unserious?

Very little photosynthesis occurs on the underside of the leaves, plus there’s a risk of disrupting phototropism and causing heat stress or light stress... I don’t really understand the purpose of this light. 😶 If you had suggested side bars for the flowering stage, when the plant is dense, that would make sense, but in this case, apart from slightly increasing the electricity bill (granted, not by much, but still), I don’t see any positive impact. That said, I’m open-minded ; I’ll follow the grow journals of those who use this setup to see what they think