Product Description 5000W/4000W/W/3500W/3000 Watt DC 12V to AC 220V Portable Car Power USB Inverter Charger Converter Adapter Modified Sine Wave . Brand Name:Â KROAKColor:Â BlackFrequency:Â 50+/-3HzInput Voltage:Â DC12VOutput Voltage:Â AC220Power:Â 3000/3500/4000/5000WWave Form:Â Modified Sine Wave Form |