well i have never grown with led but as dreaded hermie just posted to or three post earlier scroll up. 120 deg would mean put that light real close like inches from top of canapy.
Just my obeservation but i think that to get any use out of these lights you would have to grow sog or scrog.



my juestion to dreaded hermie is that i know there are 4 wave lengths that plants use two blue like 460 and 4353 or somthing and two red like 630 and 660 or there abouts WHAT WAVE LENGTHS ARE BEST FOR FLOWERRING AND VEG. I MEAN I THINK THE CALL A PAIR PHOTHSOMTHING A AND B MAYBE IT CHLORAFORM A AND BE , ANYWAY PUFF PUFF IS A BETTER FOR VEG OR BE OR IS A COMBO FOR BOTH CYCLES LIKE 40 %A IN VEG AND 63%A IN FLOWWERING .....