... To Ac Power Converter Features:1.Pure sine wave output (THD<3%)2.Power ON-OFF switch3.Input voltage ... short circuit, overload, over temperature, low battery voltage, over battery voltage, lack-voltage alarm.8.Topology: Microprocessor9.Approvals: RoHS / CE ... voltage: 100V, 110V, 120V, 220V, 230V, 240V3.Frequency: 50Hz, 60Hz, 50Hz/60Hz(having frequency switch)4.Socket types: USA, Australia, universal, UK ...