This Peterson Universal Stud-Mount Stop, Turn, & Tail Light w/o License Light is equipped with a 3-3/4” diameter wrap-over lens, two 10” lead wires, and two 1/4” studs on 2” centers for mounting. The black plastic housing and the mounting hardware both ensure a safe, secure ground. The 12 Volt, round lamp is designed for use as a stop, turn, and tail light.