McFarland Cascade Terratec Luminous Plastic Solar Post Cap, Black, Fits 4x4-Inch Post
McFarland Cascade Solar Post Caps utilize LED (light emitting diode) technology to provide light. It protects the post end from excessive water penetration. To install, remove thin protective film covering solar panel. Remove pull-tab from battery compartment to activate. Place post cap on your 4x4 post and attach with screws provided. The material has an outside measurement of 4”x4”, it is intended to be used with a “nominal” 4”x4” wood post. The actual “net” dimensions are approximately 3 ½” x 3 ½ ” inches.