Perko Inland Series Reduced Glare All-Round Navigation Pole Light - 54in White. Perko built these Boating & Marine with a polymer top and collar with a clear fluorescent lens and a 3/4 aluminum tube. The Perko 1440 All-Round Reduced Glare All-in-One Pole Light has 0 pole rake with one locking collar to help secure it in place. When you're navigating the waters the Perko 1440 All-Round Reduced Glare All-Round Light helps preserve your night vision by reducing the light wasted outside of your visibility zone. This model is ideal for power-driven boats under 20 meters in length. Features of Perko Inland Series Reduced Glare All-Round Navigation Pole Light - 54in 12 volt bulb (included) Polymer Top and Collar with Clear Fluted Lens and 3/4 Aluminum Tube Pole Length: 54" 0 pole rake with one locking collar Locking collar fits Figures 1045 1046 1047 & 1060 two-pin bases and the threaded collar fits Figure 1048 two-pin base from Perko's Recreational Catalog Package Contents: Perko Inland Series Reduced Glare All-Round Navigation Pole Light - 54in Perko 1440DP7CHR: Inland Series Reduced Glare All-Round Navigation Pole Light - 54in White