Universal design for 2- or 3-wire configurations on 12- to 36-volt systems. Watertight sealing cap and corrosion-resistant electrical components. Requires standard 1-1/8 inch diameter mounting hole. Universal design for 2- or 3-wire configurations on 12- to 36-volt systems Watertight sealing cap Corrosion-resistant electrical components Requires standard 1-1/8 inch diameter mounting hole