EC21 Product Catalogs - j x d 661 http://www.ec21.com/ec-market/j x d 661.html Solar Panelhttp://christ5441.en.ec21.com/Solar_Panel--3379970_3380261.htmlJ 15.25% 3.662-3.721 7.362 0.495 7.92 0.610 K 15.00% 3.602-3.661 7.241 0.495 7.80 0.6120090303