closet mate
switching to 400's will cost 1000's of lu's
cannot see the benifits myself
apart from the fact the the amount of light your plants recive may not be the limiting factor to size of the yeild now youve gone all supernova style
thats a fukin boss setup you got youself there
keep up the good work
BuddyLove Reviewed by BuddyLove on . Unsure about 400 VS 600 HPS I plan on having a 16 plant sea of green in a 4X4 (one plant per square foot), using some kind of hydro (flood and drain) in some kind of medium. Now my question is, even though all the books say 400 watt HPS is OK for a 4X4, will it be enough for 16 plants? Would it be OK to suppliment it with some CFLS or do you think it's neccessary I get a 600w? Rating: 5