About this item Waterproof: 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, insert 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 the energy of the sun during the day and automatically lights up at dusk. After 8 hours fully charged, it can shine for 10 hours. It gives 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 Instantly a Solar Garden Light. Decorative and Wide Application: The solar lights replacement top has 1 bright warm white LED with 7 lumens light, it can make your patio more beautiful. The solar light replacement top is perfect for all types of solar lights.