Solar panels convert sunlight into electricity during day time and recharge the battery. At night, the light comes on automáticamente.No is absolutely no wiring for lights and are easy to install. These lights can be switched almost overnight when fully charged. Automatic sensor activates at dusk. Each light is made of durable stainless steel for years of use in all weather conditions. These points of land plots are perfect for outdoor lighting such as landscape, garden or pool, etc. Solar panel: 2V 30MA LED: 10000mcd 1pc Product size: 8.5 x 8.5 x 3.5 cm Battery: 1.2 V 300mA (included) Material: PP, stainless steel floor These solar lights are perfect for outdoor lighting, such as landscapes, gardens or around the pool air.