This floating solar ball light set is a perfect addition to any pool, pond or fountain. The LED ball lights come complete with a solar panel with ground spike. You only need to do simple and easy installation. Each solar ball light is made of durable plastic which enables the light to provide years of use. The light would turn on automatically when it gets dark. The duration of lighting depends on weather conditions. Usually it can last 8 hours with 3-hour solar radiation. Powered by solar energy, solar ball lights are used to replace the traditional bulbs for environment protection. Besides, you do not need to pay electric charges for these lights since they are charged by solar energy. It is truly a one-time investment that brings permanent returns.