... default)56V112 V140V252 V280 VControl ModePWMDisplay ModeLCDDisplay ParametersPV Voltage,PV Charge Current, PV Power, Battery VoltageWorking Temperature & Humidity-20~+50°C/35 ... ,GPRS. EtcProtection FunctionSolar reverse charge protection , Solar reverse connection protection, Battery over charge protection, Battery reverse connection protection, Lightning protection 5KW solar controller