... cutting knife, Television, Sewing machines, Electric fans, AC, etc. <3> Kitchen utensils series: Microwave ovens, Refrigerators, Freezers, Coffee machines, ... AdaptorOutputAC VoltageAC 220VContinuous Power1000WSurge Power2000WWaveformPure Sine WaveFrequency50Hz / 60HzTHD< 3%ProtectionLow Voltage AlarmDC 10.2~10.8VLow Voltage Shut DownDC ... ,12v 220v 1000w pure sine wave grid inverter,one year warranty