Originally Posted by canniwhatsis
I was running a 400 in an area about that size in my basement for quite a while. Over the summer temps got a bit high, peeking into the 90's even with an 8 inch exhaust tube and inline fan (ghetto rig household booster fan in a cardboard tube with the inside painted black to block light)
I got the glass for the hood (Sunsystems-2 all in one deal) and pulled the heat from the bulb into the exhaust, dropped the temps into the mid to upper 70's! :D
The 250 wont properly light that whole area, but it should do nicely over 1-2 smaller plants. specially with the t-5's as side lighting.