2 Pack Garden Solar Black Post Deck Cap Square Fence Lights 5 LED Two Premium Atlantic Solars 4"x 4" Black Fence Post Caps One Pre-Installed Exceptional 3.2V 300mAh Lithium-Ion Battery Per Unit, Can Last Up To 2 Years LED: 5 White LEDs Can Last Up To 100,000 Hours Material: Premium Heat Resistant Plastic Two Mounting Bases (Inside Diameter) : 3.75 "X 3.75" OR 4 1/16" X 4 1/16"