Optronics MC-44RBP Red Marker Light Optronics - Rectangular Reflector Marker/Clearance Light, Red, Polypack Rectangular clearance or side marker light with 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 Assembly contains both lead and ground wire for mounting to all surfaces