Perko Coastal Series Reduced Glare All-Round Navigation Pole Light - 36" White 36in. These lights have fixed pole light heads with either 0 or 5 pole rake and single locking or threaded collar. The Reduced Glare advanced globe design helps preserve night vision by reducing the amount of light wasted outside of the visibility zone and offers improved visibility when in rough water and from above. Certified for use on Power Driven Vessels under 20 meters in length. Locking collar fits figures 1045 1046 1047 1059 & 1060 bases and the threaded collar fits figure 1048 two-pin base from Perko's Recreational Catalog. Features of Perko Coastal Series Reduced Glare All-Round Navigation Pole Light - 36" Polymer top and collar with clear fluted lens frosted top and 3/4 aluminum tube 12 volt bulb (included) Pole Length: 36" 0 pole rake with one locking collar Locking collar fits figures 1045 1046 1047 1059 & 1060 bases and the threaded collar fits figure 1048 two-pin base from Perko's Recreational Catalog Package Contents: Perko Coastal Series Reduced Glare All-Round Navigation Pole Light - 36" Perko 1460DP4CHR: Coastal Series Reduced Glare All-Round Navigation Pole Light - 36" White 36in