... TUV,ISO 9000,ROHS 2,steady photovoltaic 3,High efficiency:17% solar PV module1,Certification:CE ,TUV,ISO ... 2,steady photovoltaic 3,High efficiency:17% Solar battery panelITEM NO.:NZX-60WM18VSolar Cell:125*93.75 MonoMaximum ... )21.5Short Circuit Current(Isc)3.84Nmber of Cell(pcs)4*9Size of Module(mm)899*537 ... s ,7.53gWeight Per Piece(KG)5.9Cell Efficiency for 180W(%)>17%Frame(Material Corners,etc.)Anodized ...