The Gama Sonic GS-99F Windsor solar-charged LED lantern is the perfect energy- and money-saving replacement for post-mounted electric or gas-powered outdoor lighting. The lantern fits any existing three-inch-diameter lamp post with no electrical wiring needed. Gama Sonic"s patented cone-reflector technology enhances the light from six super-bright white LED light bulbs. Powered by sun-charged Lithium Ion batteries, the lantern automatically turns on at dusk and off at dawn (but also has an on/off switch), has a manual switch for setting long-lasting or higher brightness, and provides light up to either 15 hours at long-lasting brightness or 10 hours at higher brightness. The solar panels are integrated in the top of the lantern for maximum solar energy intake. Made from powder-coated cast-aluminum with a black finish and beautiful beveled glass, the Gama Sonic GS-104F Pagoda solar-charged outdoor lantern is weatherproof and rust-resistant.