For all 12 VDC electrical systems. Installation is easy with pre-wired pigtail harness. ---Housing is non-corrosive, non-magnetic, and impact and shock-resistant. ---Pole Length: 25"; Fold-Down bases allow light to swing 180; 360 degrees visibility; ---Wattage: 0.7W; Surface mount. ---Certified for use on sail or power driven vessel under 12 meters (39.4') in length. --- Meets USCG requirement for 2NM visibility. ---Approvals: IMO COLREG 72, USCG, ABYC A-16, NMMA type, Accepted Item Number: P00126LLDN.