my cab is 4.5'x4.5'x8' and im running a 1000hps and my cab is only 4 degrees hotter then the ambient temp of my room.

i have a vortex fan pushing air through my cool tube and 2 6'' inline fans for intake and exhaust. 250cfm each and i havnt had any issues yet.

cheers

__________________
All of my posts are hypothetical, and all information used is fictional.