Yeah, I totaly plan on venting the lights. It would be my only option. Was just thinking of doing 1 1000 watt HPS. And I was looking at your ebb and grow system online. Can that be done with smalled containers? The manufacturer didnt seem to offer it with smaller containers. I think I'm going to have to do some sort of sea of green method to keep height down. I was also looking at maybe making my own system. Thanks for your help