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Hello, It's been a while since I checked upon the latest development in growth LEDs, though I noticed that more an more people are experimenting with led Strips. Back in 2015, when I came up with the first citizen COB in this forum, it was all about single, powerful, under-driven chips to...

Hello, I'd like more informations about parallel setup of high power cobs. Could someone help me out ? From what I read, the main drawback is thermal runaway, which, if I understand it correctly, means as the cob heats up, its vf lowered, which means it hogs more juice, heats more... and so on...

Is there an UV thread similar to the "far red" one ? I'd like more infos about potential use and misuse of UV Leds. I'm not growing marijuana, but using LEDs for indoor greening (fragrance+vegetables). Does it really help fighting fungi and bacterial diseases ? How about inducing flowering ...

Ok, we have cree xlamps or bridgelux vero proven to be suitable for grow, whatever colour temperature you're into. My questions would be: what abouts others brands ? Has any of you tried osram or lumiled cobs ? An how about japanese stuff: sharp, citizen, nichia, toyonia. Some time ago, the net...