Coolex is our unique design for both cost-effective and great outperformance considerations. It uses a high-power solar panel and a battery with big capacity to make big wattage of all in one solar led street light. Such big all in one solar street light is very popular in the middle east and some African countries. The complete design is very easy to assemble and maintain, mainly including solar panel, led module, battery, and controller. Sokoyo designs a special box for the controller for water and dustproof. The battery is uniquely designed with a matching battery box with enough space for higher standard technical specifications. Many of our customers like it because it's very convenient to install and the solar panel is big enough to get enough sunshine to charge the battery for the big power of led to light the whole night even with a few rainy days.