Miller KG174488 is a welding power source with direct current and constant voltage output. It has a rated welding output of 80 amperes and 18 volts. The device can be used for welding various materials, including steel, stainless steel, aluminum, and cast iron. It is also suitable for a variety of welding processes, such as MIG welding, flux-cored arc welding, and stick welding. The Miller KG174488 is a versatile and powerful welding machine that is perfect for both home and professional use.