CE,ROHS,ISO,TUV(IEC),UL,CEC certified. Fast delivery time. Electrical Parameters:Voc: 44.64VVmp:36.21VIsc: 5.25AImp:4.97AMaximum System Voltage: 1000V DCOperating Temperature:-40 to +85 Centi degree5years warranty on material and workmanship10years warranty for 90% output, 25years warranty for 80% output. Monocrystalline solar panel 180W