... Solar Panel, Power: 230w/240w Certificate: TUV, IEC, ISO, CE, CEC Warranty: 25 years Good quality 230W/240W POLYCRYSTALLINE SOLAR PANELSPECIFICATION: CellsPolycrystalline silicon solar ... alloy type 6063-T5Encapsulation MaterialEVA (0.50 ± 0.03mm thickness)Back FoilWhite TPT (0.32 ± 0.03mm thickness)Fixing adhesiveSilicone Sealant ... .4 snow loadTemperature Range(°C)-40°C to +90°C solar panel