Product details:

Transformers convert your 120-volt house-hold current to 12-volt. This 900 watt Pro-Series version comes complete with a 3' grounded line cord, and is epoxy encapsulated with a stainless steel enclosure. It features (12v-15v) multi-tap outputs and circuit breaker protection. Can be installed on the side of your house, plugged into an exterior outlet, and must be mounted at least 12-inch above the ground.