COMBINATION MASTHEAD & WHITE ALL-ROUND LIGHT (PERKO) Fixed 3-3/16" Black

USCG Certified for use on sail or power driven vessels under 20 meters (65.6 ft.) in length. 3-mile visibility. Black plastic and chrome plated zinc alloy top, black plastic base and 3/4\" diameter anodized aluminum tube. 1\" x 2-5/8\" base. Clear lenses. 12V bulbs included. Screw size is 8.