Quote Originally Posted by Billy_80 View Post
If you look at any dc power supply, it will have the voltage and amperage output listed. It is rare to find one higher than 12v. The easiest way to connect them together is to simply strip the wires, twist the ends together and wrap the exposed wires with electrical tape individually so you don't short it out. In a DC motor, the polarity doesn't matter because the fan will spin in either direction. If anyone wants more info, or directions, I can make a video.
when I say power supply I am referring to a standard dc converter. They are the ones that look like a small black box that gets plugged into the wall.