Ok sounds like a stupid question but i have just set up a 1.2x1.2x2m hydroponic grow room with a 600w light,inlet and outlet fans and 2 desk fans 2 circulate the air but when i zip up the tent or shut the window in the room the temps going over were i want it 2 b (only slightly) what could i use to cool it down so i can zip it up n not worry when i go out i am gonna fry my crop? I need help and as many opnions as possible thanks for reading.