About this item Waterproof: The solar panel has a diameter of 8 cm. With an IP44 waterproof rating, this solar light replacement can function normally even in rainy conditions. Replacement: Simply remove the old battery box, insert the new battery into the lamp housing, turn on the switch, and enjoy the lighting effect. Working time: This solar lamp replacement charges during the day using solar energy and turns on automatically at dusk. After 8 hours of charging, it provides up to 10 hours of illumination. Runtime varies by season, offering approximately 10 hours in summer and 5 hours in winter. Easy to use: A switch is located at the bottom of this DIY light cover. You can toggle the switch while the unit is charging, allowing it to function immediately as a solar garden light. Decorative and wide application: The replacement top features one bright warm white LED emitting 7 lumens, enhancing the appearance of patios and outdoor spaces. The solar light panel is compatible with various types of solar lamps. Note: 1. Due to manual measurement, please allow a 1–3 cm variation. Ensure you are comfortable with this before purchasing. 2. Colors may differ slightly due to monitor display variations. Thank you for your understanding and support.