This 12V/24V/48V Water Heating Element is used as diversion loads for wind or hydroelectric systems. Use one or more of these heating elements with a charge controller designed for load diversion, (like the Morningstar TS-45 or TS-60) to turn your excess power into hot water. It fits most electric water heaters with screw-in elements and features 2 elements that can be wired in series, in parallel, or used individually, depending on voltage and desired current draw. 1" male pipe threads. 2-year warranty.