I think you have more flexibility with your current set up. A 4x4 is really the smallest to go with this light. I have a Gorilla tent without the included extension installed.........just not enough ceiling. It's 6ft11 without the extension. That's still good for pretty big girls with the roughly 30in needed, but could bite ya with some sativas.Looks excellent man, now I want one even more
Must say though, the 450w from the 3 TS1000 seems to be doing the job mighty so the 650w might just be a waste of electricity in the 2/4/6ft tent
