Oblong, 2 bulb clearance or side marker light. May be used as combination side marker and clearance light when properly mounted. Acrylic lens snaps onto housing. Surface mounts on 3" centers and ground through mounting hardware. Single wire for electrical connection. Features our patented VISBAR socket and 15,000 hour long life bulb. Overall dimentions 4-1/8" W. x 2" H. x 1-1/32" D.