The Zerostart 8608792 dual power cord features a 120 Volt 15 Amp Weatherproof Plug. Cord one is 10′ long with 90° Silicone heater terminal. The second cord is 12″ long with a 120V 15A standard plug. Both connected in electrical parallel used to operate two heaters of the same voltage. Example: Block heater & battery warmer.