Moonrays Electric Power Pack For Outdoor Low Voltage Lighting With Light Sensor and Rain-Tight Case (120-Watt) WEATHERPROOF low voltage lighting control unit, with a molded weatherproof body keeps the power connections and controls safe from the elements, dust, dirt, and abrasion LIGHT SENSOR TECHNOLOGY: the photocell senses the amount of light in its surrounding to automatically power lights at dusk and turn them on at sunrise AUTOMATIC SETTINGS: this low voltage lighting control unit can also be programmed to control on/off light operation for 4, 6 or 8 hours EASY-TO-INSTALL: includes 4 ft (1.2 m) power cord, easy to read instructions and mounting hardware SATISFACTION GUARANTEED: Moonrays, a Southwire brand is a global leader in electrical and electronic wire, surge protectors, garden lights, timer products and other accessories and offers a limited 1 year warranty.