... (mm)156x156 mmBrand Name of Solar CellsJingAo, CEEG,SOLAR FUNMaximum system voltage (V)1000Temperature coefficients of Isc (%)+0.04/°CTemperature coefficients ... %Output tolerance (%) ± 3%Frame (Material, Corners, etc.)aluminum alloy frameStandard Test Conditions AM 1.5,1000W/m2, 25°CWarranty5 years product ...