You can get dimmers for flos but I never heard of it for MH or HPS. To get rid of the heat you can either create more of an air exchange, put in a lower wattage lamp, or keep the ballasts in a different area and run the wires to the lamps.

Have a good one!:thumbsup:
Psycho4Bud Reviewed by Psycho4Bud on . maybee this would solve all HEAT problems? ok so if u have a say 400w hps ina closet obviously the temps gonna rise right? well how about a dimming thermostat with an external probe ??? it would turn the lgiht down a notch to keep the room temp at 86? Rating: 5