Combination masthead & white all round lights are for use on sail or power driven vessels under 20 meters. Stow-away plug-in-type. Three mile visibility. Clear lenses. Complete with two 12 volt bulbs. Black plastic and chrome plated zinc tops. 3/4” diameter anodized aluminum tubes. Waterproof cover for bases. Chrome plated zinc mounting bracket. Plastic adapters for flat or “V” type 45 degree windshields. Screw size is 8. Use spare lens PKO 278DPWHT. Vertical mount. Dimensions 27” x 20-3/4”.