Perko 12V Vertical Mount Stern Navigation Light Black. 6') in length. 2 NM visibility. Black polymer construction. 12v bulb included. Overall projection: 2-1/2" / Overall height: 3-5/8" / Width: 4-1/8". Built from quality materials. Features of Perko 12V Vertical Mount Stern Navigation Light Black polymer 2 NM visibility Clear plastic lens Built with quality materials Package Contents: Perko 12V Vertical Mount Stern Navigation Light Perko 0170BSNDP1: 12V Vertical Mount Stern Navigation Light Black