1-Mile Zamak Sidelight Bi-Color Combination, These die-cast Zamak sidelights with Perma-Plate® finish provide one-mile visibility for power boats up to 39.4' (12 meters). Mounts on decks or gunwales with external screws. Includes 7.5-watt lamp and 7" hard wire leads for 12 VDC electrical connection. Housing completely encases socket. Installs with two #8 fasteners (not included). Provides 1-mile, 225° light visibility.