Perko Stainless Steel Boat Stern Light w/ Vertical MountThis Perko Boat Stern Light w/ Vertical Mount is composed of stainless steel plating that keeps the electronics safe from harsh marine environments. It uses #8 screws and provides exceptional use and long lasting durability. With a black plastic base and a vertical flush mount, this boat stern light is for use on sail or power driven vessels 65.6 ft in length or less.Features: For Use On Sail Or Power Driven Vessels 65.6 ft In Length Or Less; Stainless Steel Plating Keeps The Electronics Safe From Marine Environments; Vertical Flush Mount; Uses #8 Screws; Black Plastic Base; Specifications: Depth: 1"; O.D. 3"; 12 Volt; Click here to download Perko SS Vertical Mount Navigation Stern Light Instructions