Hey @Haunts , sorry for the late reply. I have two 8 cm PC fans venting the air out at the top right corner of the box, also 2 of those for air intake on the low left side of the box. I have them set up so they are connected to switches with which i regulate the spin, depending on the temperature inside. I also have a cool tube for the HPS, which has a similar setup, one PC fan on the intake, one of the other side venting the air out.
I just recently stared a new grow and again I am considering adding some CFLs.. although my two week old plants look very good as it is.
