continuous power :1000w/1500w/2000w surge power: 2000w/3000w/4000w input voltage:12v or 24V output voltage and frequency: 110vAC 60Hz / 220-240v 50Hz output waveform:modifiled sine wave effiency:>90% charge current: 10A-15A output overloading protection:1200W/1800W/2400W low input voltage alarm low input voltage protection overloading protection short circuit protection over temperature protection low and high input voltage alarm and protection