high-efficient monocrystal silicon panels extra-bright LED or lighting slab with different colors (such as red ,brown ,blue, green and white.) maintenance free rechargeable batteries 6~10 h/each day (can last 4~7 overcast /rainy day) proper location:>2200 h sunshine hours/per year Automatic controlled by microcomputer Due to the variety of solar radiation level in different areas , we would customize the products according to your specific requirements More information and pictures, please contact us