About this itemWaterproof: The diameter of the solar panel is 8 cm. With IP44 waterproof design, even in rainy days, the above solar light replacement can work normally. Replace: Just take out the old battery box, put the new battery into the iron lamp hole, turn on the switch and enjoy the beautiful lighting effect. Working time: The solar lamp replacement accessory absorbs energy from the sun during the day and lights up automatically at dusk. Fully charged after 8 hours, it can shine for 10 hours. There are 10 hours of light in summer, 5 hours in winter. Easy to use: There is a switch at the bottom of this DIY light cover, you can toggle the switch while charging, and it will become a solar garden light immediately. Decorative and Wide Application: The solar lights replacement top has 1 bright warm white LED with 7 lumens of light, it can make your patio more beautiful. The solar light replacement panel is perfect for all types of solar lights. Notes:1. Due to manual measurement, please allow 1-3 cm error. Make sure you don't mind before you bid.2.Colors may vary due to different monitors, please understand. Thank you for your support :)