Hey, I have a bigger op than that now. I used a 300 cfm inline fan on my air cooled hood. This vents my room and also cools my bulb so I can get it as close as I can. You should always have a regular fan blowing right underneath the glass of your reflector. BTW, i grew my avatar (the pic beside my name) in this setup. I kept my bulb about 6 inches from the top of the canopy (eight with my 600w). As long as u can manage the temps get the light close! BTW, i got a really good deal on my inline fan at hvacquick.com. I did have to attach the power cord, but that's only 3 wires. Fantech FG-6 (unpainted) was 150 after shipping costs.