【Package Contents】: 4 x Solar Light Replacement Parts. There are φ7cm and 8cm, two sizes for you to choose. 【Auto on/off】: The solar lantern has a built-in light sensor, After turning on the switch at the bottom of the replacement solar lights, automatically turn on at night or in dark environments and turn off during the day. 【Working Time】: Turns on the power while charging, Solar panels absorb solar energy during the day, after a full charge of 8-10 hours, 10 hours of work in summer and 5 hours in winter. 【IP65 Waterproof】: The replacement solar lights have a better waterproof coating and LED protective cover, even in rainy days, the top solar light can work normally, suitable for gardens and lawns that need watering. (Please be careful not to soak in water for a long time) 【Wide Application】: Multifunctional solar light replacement parts, for LED solar lights, garden decoration, solar path light, solar garden light, and you can also design your own unique solar lights by DIY.