Can this door be mounted on exterior of Coop? Does it operate on 12 volt power?

The coop door can be mounted on either the interior or exterior as long as the actuator, power supply, and control module are protected from the elements. The actuator is operated by 12 volt power. The kit comes with a power converter that converts 110 or 220v power to the 12 volt power need which can be plugged into a standard outlet.