COMBINATION MASTHEAD & ALL-ROUND LIGHT (PERKO)

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, and chrome plated zinc alloy mounting bracket with waterproof cover. Stowaway plug-in type with 3/4\" diameter anodized aluminum tube w/gold plated contacts. Plastic adapters for flat or \"V\" type 45° windshields. Clear lenses. 12V bulbs included. Screw size is 8.