Solar road lights are designed for highway, streets, and roads with medium to high traffic. Because roads need a significant amount of lighting all night long to ensure the driving security, the size of the solar road light are among the biggest. Solar road lights are specially designed to meet those requirements. They are positioned 7 to 11 meters above ground and have a lighting range of 15 to 30 meters. Because of the long lighting duration at high power, it’s important that the light has a large solar panel to charge high-capacity batteries in order to ensure a sufficient amount of lighting all night long.