my grow box is 4 ft long 18 inches deep and 5 ft tall.i got a 4 inch computer fan pulling fresh air in an a 6 inch at the very top of box to vent it out .it gots glass doors to i was hoping they wood help the temp. stay down.im charging my camera an i will put pics up in a few mins.Chill. Thats not that bad. Try adding a bigger intake to push more fresh air in. Also a picture or an idea of your setup would help