For the sapce you have id go with the hps, 1000 ws is gonna be overkill and it would be a hard job to vent it.
hoodedclum Reviewed by hoodedclum on . 1000w MH or 400w HPS My grow box is 3' x 4' and I have both a 400w hps and a 1000w MH. I need to know which one would be best to use or should I use the 1000w just for the veg and the 400HPS to bud. or can I just use the 1000w from start to finish? If I get more air flow I may try to use both but that seems like a lot for a box this size. that would put me to almost 120 watts per square foot. :eek: THANKS :D sorry I think I may have posted this in the wrong spot. :( Rating: 5