Ok I'm ballin on a budget so I seen this HPS 400w system that comes wit a 400w MH Conversion light. It has an 18' Batwing Reflector. I know that's not the best reflector, but my question what is the best way of cooling a Batwing relector? Oh and with taht MH conversion light I can use that for the veg. stage right? I dont' need CFLs, right?