Peterson Manufacturing Amber 2.5 Inch Round Clearance/Side Marker Light features the Amber 2.5 inch round clearance / side marker light. The 143 series offers the same functions as the 142 series plus built-in reflector optics. This eliminates the need for a separate reflector. The lens is welded to the housing to form a single unit. It requires a mounting grommet and a 2-wire plug for installation. It features a 15,000-hour long life bulb.