Oblong clearance or side marker lights with built-in reflector optics in acrylic lenses, eliminate the need for separate reflectors. Mounts on 3" centers. Features twist-in socket assembly that contains lead and ground wires for mounting to all surfaces. 4-1/8"W x 2"H. Lights replace Bargman 58 Series. Lenses replace Bargman 478 Series. Priced each.