polyarcturus
Well-Known Member
MH does not emit any UVb but the 420nm and UVa it does emit will emulate the effects from what ive seen, tho its not as drastic as what UVb will really do.Ok I'll keep it going guys. Ya I haven't show you guys everything yet. You guys have only seen 1 room . I'm not about to post my entire op on here.
I always put MH on during the last 7-10 days of flower beech . As long as it's in the right spectrum and has more UVB and not UVA or UVC. The cannabis plant produces trich's in response to the UVB light. It's there way of protecting their selves. We as humans see it as a sunburn.
HPS=weight,MH=frost