Hey! do you have cooltube for the light or not? It's worth the price man I tell you! I got a 400w cooltube in a 2x2x5 tent with a 190 cfm inline exhaust + 2 6 inch fan and i kept the temperature at 28c at 6 inch from the light. I'ts 25c at the bottom of the tent. I think you can have 2x 600w if...