Light your post tops, deck, and railings. This set of 2 Post Cap & Deck Railing Lights are great for everything from accenting decorative elements of your deck, to illuminating dark paths and fencing. Whether you are trying to show off your deck or prevent trips and falls, the Mission Style Solar Post Cap & Deck Railing Lights are for you. They fit 4 X 4" and 6 X 6" posts. The Mission Style Post Cap and Deck Railing lights are made from durable metal and beautiful seeded glass. The solar powered lights convert sunlight into electricity during the day to power the included rechargeable battery, enabling the 2 LED lights to turn on automatically at night. When fully charged by 8 hours of sunlight, the lights can stay lit for up to 8 hours.