Constructed of corrosion-resistant 304 stainless steel, these lights provide one-mile visibility for power boats up to 39.4 ft. (12 meters). Lights include rubber gasket lens seals for enhanced internal corrosion-resistance. Includes one 7.5 watt lamp. For connection to 12 VDC power supply. Installs with three #6 mounting fasteners (not included) . Provides 1-mile, 225° light visibility.