Polycrytalline Solar Panel, Power: 230w/240w Certificate: TUV, IEC, ISO, CE, CEC Warranty: 25 years Good quality 230W/240W POLYCRYSTALLINE SOLAR PANELSPECIFICATION: ... CellsPolycrystalline silicon solar cells 156x156mmNumber of cells60(6×10)Dimensions (mm) ... 4 snow loadTemperature Range(°C)-40°C to +90°C solar panel