"This Powerblanket Pipe Heater Wrap is the easy way to thaw and protect pipes from freezing. Ideal for pipelines, oil fields, warehouses, valves and more. U.S.A. Watts 720, CSA CSA compliant, Length ft. 10, Withstands Temperatures F -10F/-23C, Amps 6, Color White, Style Standard, Volts 120, Compatible With Copper, metal, poly pipe, UL Listed Yes, Diameter in. 4. Rapid Ramp technology accelerates initial heat-up time After pipe is heated/thawed, power consumption automatically reduces to prevent freezing"