I asked this in the grow room spot but i think all i got was stoned nubs looking and no replies. You guys are smarter anyways I have a ward closet measures 48'' width, 20" depth and 71" tall. I will be using a 250cfm inline fan with a carbon filter and venting thru a 400w light. I am going to drilling prolly a 6 inch hole in the bottom for intake. Cover it from the outside with a speaker cover. I was going to use an intake fan but was told if you are using a big inline fan fpr exhuast you shouldnt need a intake fan and it will waste power. So should i build 2 6 inch holes on the side of them cab or will just one 6 inch hole be good enough. I will cut 2 2 inch holes in the back for the plug wires to run thru with some grommets. 1 or 2 6 inch holes and should i use intake fan or no? Also the fan im going to be using should work well right? a 250cfm inline for a closet with a 122cm. Thanks for all your info. Also i plan on using a 400w hood cooled light. Should i step up to cool tube or stay will getting a hood cooled reflector. Heat will be a issue as its summer and summer temp outside can get to 110.