and on top of that, I have a 400w HPS that I could start new plants once they're half done so I could have a harvest every month.. Pound a month would make me very happy to start with, and I'd just constantly add a light until I have the entire house fullThis is exactly what I wanted to know! So two of these would yield a good amount? A little better than a 1000w HPS (like, 1200w HPS)? I'd just be happy if I could yield a pound for each harvest.. I bet you could put 9 of those lowryder plants (the ones that yield 28-50g/plant) under each of those lights, or put a good 18 under two of them and come up with some very large yields in about 2 months... Good idea or no? Even judging low, that would be 18oz or at least 1lb every 2 months.. I'd be satisfied with that to start!