thats what i was planing on doing today, i had heat issuse at the top of the canopy(87 f) thats why i raised it, but know im hooking up an A/C, on my last harvest my potency wasnt that good, the buds looked great and smelled great but it just wasnt there im thinking it was cuz of the lamp been to low, the strains where cheesus, cole train,MK ultra,. how many plants you got going right know? what city you live in?