adameldon, you seem to have the same problem understanding device and power supply power requirements and availability as many people do. If a power supply is rated for 12 volts, then it will power ANY 12 volt device you hook up to it, as long as it can supply at least as much current as the device needs. The amperage capacity of a power supply is how much it CAN supply not how much it WILL supply. The voltage/current rating on a device are the voltage it's designed to run at, and the current it will draw under normal operating conditions.