Also, i have a 435cfm fan that cools my 4 lights,, does anyone think if i upgraded to a bigger fan it would be beneficial? as of right now the room stays perfect, but my AC is kickin on constantly.
How does the exiting air feel? If it is really hot - you may be able to gain some cooling with more CFM's - but not likely unless you are drawing in air from a very cool source. With AC hoods, much of the heat is retained in the metal shroud and hood assembly. I think you are running the Radiant's right? You can get insulated hood covers from more than one manufacturer now - they work. For the ultimate in AC reflector cooling, try the Ice Box from HydroInnovations! I have been looking at these for months and finally got to see one in action - sick if you can set it up properly! But the insulators alone are supposed to save you 10 degrees! I don't know about those claims, but they do seem to ease the burden on the AC - from what I have seen and understand from my buddy who has been running them for about a month... worth a look.