Working time: the charging time is 6-8 hours, and the working time is more than 8 hours. The diameter of the solar panel is 8cm. Use for solar panel replacement, for defective solar panels. Replacement: The replacement solar lamp cover is suitable for solar light This DIY light cover has a switch on the bottom part and opens the switch while charging. This cover light turns on and off automatically and immediately becomes a solar light / solar garden light. Packing list: 2 pieces