This 2-piece LED solar light set comes complete with tubes, ground spikes and rechargeable batteries. It is a perfect decorative lighting for gardens, patios, paths, yards and balcony. Each solar ball light is made of durable plastic for years of use. With four 0.1 W LED lights inside, each piece of solar ball lamp is able to provide 0.4 W lighting. So 0.8 W for the whole set. The lights are easy to install. You can adjust the height of each light by choosing to use one or two tubes. When it gets dark, the lights would turn on automatically. The duration of lighting depends on weather conditions. Usually it can last 8 hours with 3-hour solar radiation. The lights would bring no pollutions to the environment since the batteries of these lights are charged by solar energy during daytime. And with no need of using wires to connect lights to sockets for charging, it is safer for use and more convenient to move. Besides, you do not need to pay electric charges for these lights since they are solar powered. It is truly a one-time investment that brings permanent returns.