hey guys, setting up another cab, out with the old, in with the new. Im going to be running 150 watts of hps and 150 watts of cfl, my grow space is 24 cubic feet so I was planning on purchasing the 80cfm whisper fan which is their quietest model. I realize that I will be replacing the air in my cab 2-3 times a minute, which I believe should beable to keep temps in reason, but still im having doubts. I have read somewere that the panasonic fans cannot be hooked up to a speedcontrol, which is whats keeping me from getting a larger fan and just turning it down for the same noise level and more cfm, could some one please chime in on wether or not this fan can take a controller? thanks so much