Florida heat

Just curious as to how other floridians deal with the heat in their grow room. (im in orlando)
I have a giant grow box with no top on it, in my garage. Im running a 600w lamp that hung from the ceiling and i have oscillating fan on the plants.
Anybody have heat issues? how do u deal with it?
My electric bill is pretty low and id like to keep it that way so i really dont wanna run an ac unit in my garage.
Anybody?:bonghit:

I built a ventilation system. I live in an apt so I could cut into a wall like I wanted to but I decided to go through the wall from the closet that runs outside (deionized of course).I think your in a better position than I am so at least the sky's your limit.