... ,ROHS 2,steady photovoltaic 3,High efficiency:17% solar PV module1,Certification:CE ,TUV,ISO 9000,ROHS ... steady photovoltaic 3,High efficiency:17% Solar battery panelITEM NO.:NZX-60WM18VSolar Cell:125*93.75 MonoMaximum Power(W) ... )21.5Short Circuit Current(Isc)3.84Nmber of Cell(pcs)4*9Size of Module(mm)899*537* ... 90% for 10 years, 80% for 25 yearsStandard Test ConditionsAM1.5 1000W/ 25 +/-2°C FF (%)73% ...