Injection molded nylon and aluminum. For all 10-30 VDC electrical systems. Installation is easy with pre-wired pigtail harness. Housing is non-corrosive, non-magnetic, and impact and shock-resistant. Mounts on 2'' x 2-1/2'' square tubing. Each lamp is completely sealed (IP65). Power consumption is less than 1 Watt due to its exceptional power efficiency. Folds down secured with screw. Fold -Down bases allow light to swing 75 degrees from vertical in either direction (about 150 degrees of movement total); 360 degrees visibility; Wattage: 1.5W; Surface mount. Beam Angle: 120 degree; Lumen: 86 lumen LED: 8pcs. 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: P01000LLD