Amico ST-205, 205-Amp Stick Arc Lift-TIG DC Welder, 100-250V, 60% Duty Cycle Posted on November 3, 2023 by admin ST-205 is a rectifier adopting the most advanced inverter technology. When stick and work piece get short, its response will be quicker. 300A Work Clamp, 10-feet Cable, 35-50mm Lead Dines. Rated Duty Cycle(230V): 205A at 60% & 160A at 100%.