Working time: charging time is 6-8 hours, and working time more than 8 hours. Solar panel diameter is 8cm. Use for solar panel replacement for defective solar panels. Replacement: The solar light replacement cover is suitable for the solar light This solar replacement cover is made of 25% efficiency polysilicon. Includes one 600mAh / 1.2V AA NI-MH battery. This replacement top features a 7 lumen bright warm white LED. This DIY lighted cover has a switch at the bottom and opens switch while charging. This hedge lamp turns on and off automatically and immediately becomes a solar light / solar garden light.