lighting question


New member
I am replacing the fans in a 3x 150 MH, 2x T5 fixture (72"), The previous fans were both blowing in. I am replacing them with better fans and want to know if there is a reason I cant point one to blow out? I figured the air would circulate better that way.

Anyone done this? Good or bad idea?



New member
I have seen most people recommend having fans that blow in. That being said, I hae a Hamilton MH/VHO fixture that has one fan that blows out.