The Lincoln MIG 135M is a portable Gas/Gasless Wire Feed Welder. It uses AC single phase 115V (110-120V), 60HZ/20amp with time delayed fuse or circuit breaker. It features four voltage settings, infinite wire speed control, overload and thermal protection. The Lincoln MIG 135M is ideal for use when welding mild steel or stainless steel 18 gauge to 3/16” for light industrial applications. While not impossible, this unit is not recommended for MIG welding aluminum.