1、Regulable Charging Current: Pure sine waving output power factor 0. Programmable power supply priority for PV, battery or grid. User can adjust charging current and voltage. 2、Wide PV Input Range: This solar inverter has a wide PV input range from 120VDC to 500VDC. The inverter monitoring application APP can be downloaded to monitor the operation of the inverter anytime, anywhere. It is suitable for IOS and for Android systems. 3、Aluminum Housing: AC or Solar input priority can be configured via LCD settings. A comprehensive LCD display provides user configurable and easily accessible button operation. 4、Compatibility: The inverter is designed with a smart battery charger to optimize battery performance. Compatible with mains voltage or generator power. 5、Aluminum Alloy Housing: Input voltage range and frequency. This off grid inverter features an aluminum alloy housing to resist heat, cold and rust. 6、Lower Operating Temperature: The solar inverter has a built in smart temperature controlled cooling fan. When the internal temperature of the pure sine inverter get a certain level, the fan will rotate, effectively reducing the operating temperature. 1 x Inverter1 x Instruction Manual1 x Upper Computer Connection Cable Item Type: Off Grid Solar InverterMaterial: Aluminum alloyUse: Solar power conversionRated Power: 3500VA or 3500WInputVoltage: 230VACOptional Voltage Range: 170 to 280VAC(PC), 90 to 280VAC(home appliances)Frequency Range: 50Hz or 60Hz (Auto sensing)OutputAC Voltage Regulation(Output Mode): 230VAC ± 5%Surge Power: 7000VAPeaking Efficiency PV to INV: 97%Peaking Efficiency BAT to INV: 94Transmission Time: 10ms(PC), 20ms(home appliances)Waveform: Pure sine wavingBattery and AC chargerBattery Voltage: 24VDCFloat Charging Voltage: 27VDCOvercharge Protection: 33VDCMaximum Charging Current: 80ASolar ChargerMaximum PV Matrices: 5000WMPPT Range Operating Voltage: 120 to 450VDCMaximum PV Array Open Circuit Voltage: 500VDCMaximum Charging Current: 110AMaximum Efficiency: 98%Operating EnvironmentHumidity: 5% to 95% relative humidity (non condensing)Operating Temperature: 0℃ to 55℃Storage Temperature: -15℃ to 60℃Interface: RS485 or RS232, LCD remote or WiFi