Perko 12V Bi-Color Bow Light Horizontal Mount Chrome PlateTechnical InformationChrome plated brass or stainless steel topBlack plastic caseCertified for use on sail or power driven vessels under 12 meters (39.4 ft.) in length12 voltO.D. Base: 2-3/8"Screw Size: #4Finish: Chrome brassVertical Height Inches: 7/8Model Number: 0972DP0CHRShip Weight: 1.1/4.5