20W all in one solar led billboard light covered a size of 6*3M advertisment, which is very conspicuous in night. The parameter: 20W Philips LED, 80W MONO PV panel. Auroras Integrated solar billboard light (Helios Series) features All In One concept, module structure and plugging connection. It's easy to delive, install and maintain. The distance from solar light to solar panel could reach to 30 meters. easy to install anywhere.