shadow_moose
Well-Known Member
My thoughts exactly, 660 nm deep reds have dominated for a while now. Flora did mention that info was from 2012, five years is a long time especially in LED tech.how are they cheaper? if i compare at cutter, the 660 are even cheaper then the 620/630
and please show me some source where i can see 630 have ~20-30% greater radiometric efficiency then 660 nowadays