Active cooling

I made this active cooler specially for a Mbot 3d but might still fit on most mk8 & mk7 dual extruders
i used a 24v blower fan to minimize size, link bellow.
http://www.dx.com/p/av-0-13a-24v-2-pin-hdd-27-blade-cooling-fan-black-red-305655#.VCbNR2ddWaI
any tips let me know