20 watt monocrystalline solar panel with 1) Power:300W 2).for solar product use 3).CE certificate 20 watt solar panel18V, monocrystalline sillicon module, ... . 1). Refer to the Wmp range,Our factory can produce solar panel and solar module from 1.5W-180w (1.5w, 2.5w ... ). Refer to the customers LOGO, Can be printed on the solar panel or solar module, 5). Refer to our factorys advantage,Good quality ...