... -190W Specifications1).Solar panel:180W-200W 2).Certification:CE,TUV/IEC61215&61730,UL1703/ ... current(Isc)5.79AOpen circuit voltage(Voc)43.2VOptimized cell efficiency(η)18.84%Power tolerance: ±3% LimitsOperating temperature -40°C to ... &61730(TUV),UL1703/CSA,MCS,CE,SGSCellsMonocrystalline silicon photovoltaic cell solar panels