The latest technology for beautiful, high-tech landscaping would be these In-ground Lights. During the daytime, they are retracted, and absorbing solar energy. At dusk, they literally pop up and light up, giving you lights along a pathway, driveway, deck or dock that aren't in your way during the day.Includes installation hardware, completely wireless. Powered by a lithium ion rechargeable battery that's solar powered - each light illuminates via 4 LEDs. Completely weather resistant. Each light works independently.