... approval 2.Frequency:50 or 60Hz 3.Use in home,outdoor 4.Input12/24,output 110/220/230 ... AC UPS power inverter with Battery Charger,used in home ,outdoor All ProtectionOver-loadOver-voltageLow-voltageBuzzer AlarmShort-circuitOver-temperatureLCD ... mobile phones, printers, monitors Household appliances: Televisions, video recorders, audio, DVD, VCD and electrical boxes Outings: Field lighting, microwave ...