... dc12v to ac220v power inverter 600W DC-AC pure sine wave inverter1. Efficiency:94%2. 12V/24v/48v dc input3. 220v ... ,etc.300W: 20TV ,VCR Combo ,computer ,printer ,Fax ,etc.500W: Home stereo ,Blender ,Fan ,etc.1000W: Coffee maker, portable vacuum ,etc ... .1A0.6A0.3A0.1AFrequency50HZ±0.5HZ or 60HZ±0.5HZOutput wave formPure sine waveUSB5V 1ATHDTHD<3%(Resistive load)EfficiencyMax 94%Input ...