I've seen the numbers for suggested light amounts per square foot of actual growing space, but I'm wondering if there is in fact a ceiling for this? So long as you can keep the plants temperate and not allow them to get burned, is their a ceiling beyond which the light can still hurt the plant or at the very least be of no benefit whatsoever?

I recently read an article by a fellow who claims to be using a 1000w HPS for a 3'x3' grow area, but can swing it because of the other measures he's taken to ensure proper climate control. Is this just totally unnecessary overkill, with little realistic ability of improving the crop over say, a 600w light for the same space? Or could this, and conceivably more wattage, really give whopping gains come harvest time?
sharer6969 Reviewed by sharer6969 on . Too much light - is there such a thing? I've seen the numbers for suggested light amounts per square foot of actual growing space, but I'm wondering if there is in fact a ceiling for this? So long as you can keep the plants temperate and not allow them to get burned, is their a ceiling beyond which the light can still hurt the plant or at the very least be of no benefit whatsoever? I recently read an article by a fellow who claims to be using a 1000w HPS for a 3'x3' grow area, but can swing it because of the other measures he's Rating: 5