To select the right product, you need to match it to the type of primary power available: single-phase (home, garage, barn) or three-phase (industrial), 115, 200, 230, 460 or 575V. For primary power flexibility, look to Miller's inverter-based products featuring Auto-Line™ or Auto-Link®. They automatically accept single- or three-phase power, as well as multiple voltages without any manual relinking of jumpers.