solar PV module 1,Certification:CE ,TUV,ISO 9000,ROHS 2,steady photovoltaic 3,High efficiency:17% solar PV module1,Certification:CE ... Isc)3.84Nmber of Cell(pcs)4*9Size of Module(mm)899*537*35mmFront Glass Thikness(mm)3.2Maxium ... ,7.53gWeight Per Piece(KG)5.9Cell Efficiency for 180W(%)>17%Frame(Material Corners,etc.)Anodized Aluminum AlloyBacking (Brand ... 1000W/ 25 +/-2°C FF (%)73% 60W---solar PV module