steeZz
Well-Known Member
They might grow quicker under the HPS bulb than T5's, so if hes not using it he mineaswell right?...depending on how big the plants are ofcourse.How old are they now is the question?
A 600 watter can be too much for very young upstarts, but once they are about 6" tall they can handle it fine as long as the lamp is 12-18" above the canopy. Young plants in veg also do just fine with CFL's, but I'd be using T5's at least. HPS bulbs are best for flower, MH bulbs are best for veg. The 150 watter would be perfect prob if you could throw a MH bulb in it.
The more light the sooner, the better though. Give it to em as soon as they can handle it.
I know lots of people who VEG and FLOWER under HPS bulbs and come out just grew.
The only thing is, people suggest to use MH for veg and suggest to use HPS for flower, it might make a difference but theres more than one way to skin a cat.