Our Solar Stair Lights are beautiful, high-tech. They are ideal for night light lighting of garden, lawn etc. You can also use it like indoor light, just put the solar light outdoor at day. During the day, the solar panel converts solar power into rechargeable battery. At night, the light turns on automatically by stored energy. Duration of light depends on solar product's level of sunshine exposure, geographical location, weather conditions and the hours of daylight. Includes installation hardware and does not require any wires or wiring.