Dude, the undersides of leaves dont need light!
All this will do is cost u more money.
Now, if ur saying ur friend is using this as extra light in a dark corner thats fine.
But, lighting the underside of leaves is useless.
L8
MJ
MJACTIVIST Reviewed by MJACTIVIST on . Lighting Grow From Underneath? i went by a buddies place this morning to check out his grow for him and see how things were going. hes growing in a space about the same size as mine. hes got 8 plants (4ft tall) on flower right now with 1 1000w MH above them (he never uses HPS and always grows nice tight crystallized potent firebud) , but he has a 500w output florescent on the ground shining up into his plants. in the middle of his grow. ive been growing for years and never saw such a thing (side lighting?...yea, Rating: 5