... CPU controlled structure 2. Rate solar power input 1KW 2. LCD display solar controller The solar charge controller ... Voltage24V48VUnload Voltage(factory default)28V56VControl ModePWMDisplay ModeLCDDisplay ParametersPV Voltage,PV Charge Current, PV Power, Battery VoltageWorking Temperature & Humidity-20~+50 ... charge protection, Battery reverse connection protection, Lightning protection 1KW solar controller