The Blazer B423A amber rectangular clearance and side marker light with reflex is designed to conform to applicable U.S. FMVSS108 and Canadian CMVSS safety standards for clearance lighting. The stud mount application allows for easy installation. The clearance marker has a highly durable ABS housing along with an acrylic lens that provides reflex function to eliminate the need for additional reflectors. The light contains a single lead wire for power and is grounded through the mounting hardware. Description: 2-7/8 In. Rectangular Side/Clearance Marker w/Reflex, Amber.