Perko Fold Down All-Round Pole Light - Horizontal Mount - WhiteFold Down All Round Pole Light Horizontal Mount White Certified For Use on Sail or Power Driven Vessels Under 20M (65. 6') in Length Features: For Use on Windshields, T Tops, Rails, Arches and Hard Tops Horizontal Mount White Translucent Globe Black Polymer Base Polymer Adapter Available for Flat or "V" Type Mounts, Contains Notch for Through Base Wiring Fold Down, Adjustable Angle Specifications: Dimensions : 2" x 1 1 2" Screw Size : #8 Bulb : 12