I've now got 4 x 450w ViparSpectra's in my 4ft x 4ft tent, all the autos are in flower and are all quite big, what's the lowest hang height I can get away with without causing any burning or bleaching?
If space (height) is at a premium and you haven’t tried to manage your canopy you might want to loose the cables that came with your LEDs. I’ll check to see if I’ve git a shot of what I did to shorten up the hangars for mine.