I'm not growing pot, but virtually everything I read about COB comes back to this forum so I have come for your expertise.
I want between 3,000-4,600 lm over a 18"x48" area at a distance of 18". I've been looking at a BXRC-40G4000-F-23 with a Aavid Thermalloy HSLCS-CALBL-033 heatsink and its...