20 watt monocrystalline solar panel with 1) Power:300W 2).for solar product use 3).CE certificate 20 watt solar panel18V, monocrystalline sillicon module, encapsulated with glass, with aluminium frame and junction box.with mounting bracket. 1). Refer to the Wmp range,Our factory can produce solar panel and solar module from 1.5W-180w (1.5w, 2.5w, 5w, 10w, 20w, 40w, 50w, 60w, 70W,80w, 85w, 125w, ...