My friend has a few sprouts going and not much time left on his lease. He is thinking about moving to a 12/12 cycle from 18/6 CFLs. Should he get HPS, or what?
Depends how big you want them, 400 would cover some decent sized plants, if you wanna have a smaller opp a 250 is ok too, if you wanna have em 18-20 inches at harvest.