I have them in a 7’ x 3’ x 3’ gorilla tent. The were under a 300w led but about a week ago I upgraded that light to a mars 900 in hopes of boosting my bud size. I have 3 Strawberry Kush in a closet that were under cfl’s and they ended up getting the 300w LED. I just got a 5’ x 2’ x 3’ cheap tent to move them into which will be my drying chamber for the gold leaf as well. So my hopes are having 2 harvests about 6 weeks apart. I got my first electric bill yesterday from using lights for a full month and there was a significant jump. My central a/c died and I had a night where my gold leaf was up to a temperature of 100 F. They looked happy though, but not to push my luck, I put in a window a/c to allow them some cooler temps.