Easy Heat Roof De-Icing Heating Cable Control Automatically turns on de-icing cable to prevent the build-up of snow and ice on roofs and/or gutters. 2 power indicator lights, 1 in the plug and 1 at the heating cable receptacle. When moisture is detected and the temperature falls below 35 deg degrees Fahrenheit 2 deg Celsius , it energizes the cable, this is indicated by the unit's lit receptacle lamp. Package includes installation and operation instructions, sensor clips, and mounting screws for easy installation. 6-foot cord. Capacity 1200W, 120VAC. Wattage 1200W, Voltage 120V, Pkg Qty 1, Package Type Box WARNING This product can expose you to chemicals which are known to the State of California to cause cancer or reproductive harm. For more information go to www.P65Warnings.ca.gov.