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. Plastic adapters for flat or “V” type 45 windshields. Clear lenses. 12V bulbs included. Screw size is 8.

• Description: Spare Base & Vertical Socket Assembly