first id like to say thank you too you all...im a newbie to indoor growing and i have been reading all the information provided on these forums and was able to start and finish my first plant. it was a closet grow with no air system, just a get my feet wet start..even with all the information i have read and tried i cant still figure out how to keep the heat down in my box...i have a 2ft by 4ft by 6ft plywood box i made..running 1 150 watt cfl 6500k...6-26wt cfl 6500k and 1 150 watt hps..i run 18/6 they just started their 1st week..im running dwc with 3 buckets.. there is a 6inch duct fan that pushes 160cfm and i made 3, 4in holes for intake i put dryer ducting on the inside to help block light but let air in ..the air is staying around 90 deg, i run my a/c at 75 and run the celing fan in my room.. not sure if this is affecting the air ? i open the doors some and can get it down to 88 sometimes 84.. what is causing the heat to stay so high??