I have a 6inch Vortex Fan. It works great, i had it on about half power when i had my 6x7x6 box. It moves tonnes of air and is pretty quite. Also, i had 2 digital 600w lights in my room, and yours is bigger. I would go for at least 2 if not 3 or 4, 600w bulbs if you can. The t5 lights dont have...