This Crofts Solar Powered 1-Light Lantern Head can be mounted on fence posts in your front or backyard, driveway, porch, balcony or walkway. They brighten patio, deck, terrace and pool areas with 20 LED lights that safely secure areas around your home or office. Save money and energy using the power of the sun! Solar power and rechargeable batteries (AA included). Outdoor safety and security wiring required. Fits 4″ x 4″ x 11″ fence and wall posts energy saving traditionally inspired durable and weather-resistant specifications: the power source, solar panels and AA rechargeable batteries (included).