20 watt monocrystalline solar panel with 1) Power:300W 2).for solar product use 3).CE certificate 20 watt solar panel18V, monocrystalline sillicon module, ... : 1W-180W, to be encapsulated with tempered glass, EVA,TPT, together with aluminium frame, junction box and (if necessary) ... to the customers LOGO, Can be printed on the solar panel or solar module, 5). Refer to our factorys advantage,Good quality ...