PERKO
12V BI-COLOR LIGHT
USCG Certified for use on power driven vessels under 12 meters (39.4 ft.) in length. 1-mile visibility. Chrome plated top with black plastic base. 12V bulb included. Screw size is 8. Housing C.P. Zinc Alloy Size 4" L x 3-1/8" W x 1" H