just got another 4" duct fan and I'm going to use it as a second intake ( two 4" intakes.....One 4" exhaust....all 3 80 cfm) Before I go through all that though I'll try shutting the intake down and adding a small fan inside the box.

As far as my setup goes.....the closet/grow cabinet is in my bedroom that is cooled by an in window AC. I am venting out of the top of the box into my bedroom. room temps are around 70 at all times.
fireman25 Reviewed by fireman25 on . Can't get below 93 deg.......... Heres my setup....... Closet - 48" H x 20"W x 20"D Single Waterfarm w/ 6" airstone 6 x 42 watt CFL Ducted 4" intake and exhaust mylar covered walls ( mylar wrapped around styrofoam panels) The room the closet is in is air conditioned down to 70 degrees I have my temp gauge located about 4" under the lights.......Is that the wrong place????? I can't get the temp in the box any lower than 93 degrees and thats with the room down to 70 and the fans constantly going. What am I doing Rating: 5