Welding machine from EDON company, And the specifications shown on the box: Voltage: 220V AC 🔌 Frequency: 50/60 Hz 💪 Rated Power: RMS 3900W 🔧 Working Diameter: 2.0 to 3.2 mm 🇨🇳 Made in China Information: The device is new with the bag and has not been used.