Black 6 in. x 6 in. VersaCap Solar Post Cap (Part number: 158389)

Deckorators® VersaCap post caps are great for deck, fence, and porch posts that might have irregular sizes. The VersaCap solar post cap comes with two inserts that you can swap out to fit posts ranging from 5 inches square to 5-1/2 inches square. The solar post cap is plastic with glass windows. It provides ambient light. LED light bulbs should last about 10 years (based on normal usage of 6-8 hours a day). Rechargeable batteries last about a year. Before using, fully charge batteries in direct sunlight for 24-48 hours.
Features
Two interchangeable inserts let the post cap fit over posts ranging from 5 to 5.5 inches square
A great solution when your posts aren’t all exactly the same width
Adds ambient outdoor lighting without electricity
Solar powered with LED lights, 6-7 lumens, cool light, 7500-9000K