These lights have 3 LEDS of SMD type. They feature engineered lens optics, and function as clearance lights, side marker OR identification lights. These are ideal for any application on trailers and universally. Compact size, easy for installation by drilling a 3/4" hole and pushing it in. Two-wire design includes separate lead and ground wires with bullet terminals connector plugs. PC lens, ABS housing and LED circuitry completely sealed with epoxy to ensure a permanent and water proof seal. Meets PC and P2 rating of DOT FMVSS 108/SAE requirements. Rated for 12V, tested to 13.8V