Add some light and style to your posts with these Solar Powered LED Post Lights. These versatile post caps can be used on your patio, deck, fence, or pathway. Removal of the base allows easy installation to nearly any 4" x 4" post. Use of the included base lets you attach these lights to virtually any 5"x5" inch post. The included 1.2V AA Ni-CD battery will be recharged every time the solar panel absorbs sun light. These lights feature a unique mechanism that allows you to turn it on once and never have to worry again. No additional wires or power source are needed. It is recommended to install these post cap lights in an area that receives sunlight. Product Dimensions: 5.75" x 5.75" x 4.5", Base Dimensions: 4" x 4".