Genuine Firepower® FP-25i is a 25 amp portable plasma cutter that operates on 115 volt input power. The FP-25i has a recommended cut thickness of 5/16" on mild steel. It is also capable of cutting stainless steel, brass and aluminum. The system, with torch, weighs just under 30 pounds. It runs on 115 volt input power and can also work off of a 8,000 watt portable generator.