The Edon LV-400 is a model in Edon's line of inverter welding machines, generally advertised as a heavy-duty MMA (Stick) welder.
Similar to other high-numbered Edon models, the "400" in the name often refers to the machine's model series or its maximum non-continuous current potential. It is crucial to check if the specific model is a single-phase or three-phase unit, as this dramatically affects the actual maximum usable output current.