This is my 2nd grow.. I use 1000 watts light .. 400 or 600 watts lights do sucks !! Gotta get 1000 watts hps .. it 4 times more yeild .... What you Guys think ? not bad ... kiss-ass
1000 watts is the best choice. it only cost me 10 cents per hour for electic . ..... but with 1000 watts you got to make sure room stay cool at 74 .. and i put one wall fan between light to plants and also mini fan on bottom so help soil not to mold and dry faster .. more you feed them bigger they get and healthy ...