High-impact resistant molded housing with brilliant durable copper-nickel chrome-plated finish eliminates rust and corrosion and offers a custom look. Socket floats bulb in a soft, resilient pouch to minimize premature bulb failure. Pass-through mounting holes for installing without disassembly. Flat back eliminates need for socket hole. Lexide mounting gasket, replaceable lenses. 4-7/8"W x 2"H x 1-3/8"D overall, mounts on 3-7/8" centers.