Oblong clearance or side marker light with a reflectorized lens, eliminating the need for a separate reflector to meet DOT requirements. Features snap-on, replaceable lens and easy to change replaceable bulb. All-weather molded plastic housing and durable lens protect against corrosion. Mounts on industry standard 3” centers. Single wire design grounds through mounting hardware. This is a single bulb light. Accepts any standard #194 replacement bulb.