I have been using what i have l learned on riu to build a grow cabinet. the dimensions are 2x3x5. i am using a cheap 400w hps set from htg supply along with 4 cfls from the bottom. my problem is figuring out my ventilation. i am wanting to use 3-120mm cpu case cans that put out 80 cfm each. my question is how do i power the fans?
here is a link to the fan that i am considering.
http://cgi.ebay.com/120mm-x-120mm-4-Pin-PC-CPU-Heatsink-Cooler-Cooling-Fan_W0QQitemZ320491442855QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item4a9ec752a7
here is a link to the fan that i am considering.
http://cgi.ebay.com/120mm-x-120mm-4-Pin-PC-CPU-Heatsink-Cooler-Cooling-Fan_W0QQitemZ320491442855QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item4a9ec752a7