... 2.Frequency:50 or 60Hz 3.Use in home,outdoor 4.Input12/24,output 110/220/230 1200W DC ... UPS power inverter with Battery Charger,used in home ,outdoor All ProtectionOver-loadOver-voltageLow-voltageBuzzer AlarmShort-circuitOver-temperatureLCD DisplayTechnical ... electrical boxes Outings: Field lighting, microwave ovens, cooking, etc. Outdoor work: Power tools, vehicles for help, rescue and disaster ...