Feature:1. Safety Protection: The all round protection design ensures stable operation of the off grid solar inverter and is a safer system.2. Automatic Switching: This inverter can automatically switch to offgrid when the mains power is abnormal, with a switching time of less than 10ms, never losing power.3. Stable Performance: This solar inverter has a high off grid output overload capacity and can be used for different loads.4. Easy to Operate: The LCD interface of the inverter is clear, easy to set up, supports online upgrades and is simple to maintain.5. Energy Saving and High Efficiency: Soft switching technology enables a maximum conversion efficiency of up to 93% and a low battery standby power of 5W, supporting 1.1 times long term overloadSpecification:Item Type: Off Grid Solar Inverter ChargerMaterial: Aluminum alloyBattery: Rated Input Voltage: 48VHigh Voltage Protection Point Upper Limit: 60VMaximum Low Voltage Protection Point: 40VOutput: Output Waveform: Pure Sine WaveRated Power: 3KWOutput Voltage: 220VACOutput Frequency: 50Hz/60HzMaximum Efficiency: 94%Overload Protection: 5s at>150%, 10s at 110%-150%THDV: 3% resistive load <5% capacitive load at rated voltageDC Component: <100mVNo Load Loss: <15WCharging: Charging Mode: 3 stage chargingCharging Current: 10-40AConstant Voltage, Floating Charging Voltage: AdjustablePower Grid: Rated Input Voltage: 220VAC, 230VACVoltage Range: 115-300VACInput Frequency: 50Hz, 60Hz auto adaptiveHigh and Low Voltage Protection Points: AdjustableHigh and Low Frequency Protection Points: AdjustableOff Grid Switching Time: <5msStructure: Size: Approx. 225 x 394 x 111mm / 8.9 x 15.5 x 4.4inIP Range: IP21Heat Dissipation: Air cooledEnvironment: Operating Ambient Temperature: -20C - 50CStorage Ambient Temperature: -35-70Relative Humidity: <95%Altitude: <5000m.Package List:1 x Off Grid Solar Inverter Charger1 x InstructionNote:Pay attention to the safety of electricity when using