> It can be used for both 100V & 200V, and it can be used with either input. > With a large current of 160A, it can handle alkaline welding rods! > Extending the weld cable to 50 meters does not attenuate the current.> Compatible with f4.0 welding rods. > Safety: Automatic VRD Protection Function for Over-current, Over-voltage and Over-heating. The fan with automatic temperature control makes the machine run very quietly. Perfect choice for light to medium duty welding jobs whether in your garage, at home or at your local auto body shop. Rated input power: 5/7.1. Item Processing Time: The processing time for a specific order varies with the product type and stock status. If you have any issue, you can just give us a message, and we give you full resolve. Please be patient when contacting us, all messages will be replied within 24 hours. Please let us know immediately if a package is damaged upon arrival.