Perko Fixed Mount White All-Round Navigation Light Perko Fixed Mount All-Round Light - White looks good on any boat. Certified for use on Power Driven Vessels up to 65.6 feet in length. The polymer base and top can hold up to harsh marine environments and the corrosion that comes with it. FeaturesSpecs Reduced Glare Design Black Polymer Top with Clear Fluted Lens and Frosted Globe Fixed Mount Black Polymer Base Bulb 12 Volt Included Base Dimensions 1 x 2-58 Pole 34 Diameter Anodized Screw Size 8