Pure sine wave output, self consumption, and feed into the grid. Programmable supply priority for PV, Battery, Grid. User adjustable battery charging current suits different types of batteries and multiple operation modes: Grid-Tie, Off-Grid, and Grid-Tie with backup. Built-in timer for the various mode of on/off operation, multiple communication for USB, RS-232, Modbus, and SNMP. Monitoring software for real-time status display and control. It can be paralleled up to 6 units for 5 KW and 10 KW.