products include solar panel and solar cell. solar panel is green and environment-friendly new energy, divide into mono crystalline silicion cells material and poly crystalline silicion cells. the most popular and best-seller is 300w, 280w, 250w, 240w, 200w, 150w, 100w 90w and so on. as for the solar cell, there are two kinds, one is 6inches,156x156mm, and the other is 5 inches, 125x125mm.