SF-160A is a rectifier adopting the most advanced inverter technology. Welding power source can offer stronger, more concentrated and more stable arc. When stick and work piece get short, its response will be quicker. It means that it is easier to design into welding machine with different dynamic characteristics, and it even can be adjusted for specialty to make arc softer or harder. Specifications: Model: SF-160A; Rated Input Voltage: AC 100-250V; Frequency: 50-60Hz; Rated Input Power: 230V/5.9KVA/28A & 115V/4.2KVA/38A; Current Range: 230V/15-160 Amp & 115V/15-130 Amp; Rated Duty Cycle, 230V: 60% @ 160 Amp & 115V: 60% @ 130 Amp; Nominal DC Open Circuit Voltage: 76V; Usable Electrode, 230V: 1/16~3/16 in. & 115V: 1/16~5/32 in.; Power Factor: 0.93; Dimension: 16.5 x 8.5 x 13.5 in.; Net Weight: 18.0 lbs.; Packaging Size: 19.0 x 11.0 x 15.0 in.; Packaging Weight: 24 lbs. Packing List: SF-180A Pro. Stick Arc Welding Machine; 8 feet Power Cord & N6-50P plug (on the machine); 230V to 115V Power Adapter; 300 Amp Electrode Holder, 10 feet Cable, 35-50 mm Connect; 300 Amp Work Clamp, 10 feet Cable, 35-50 mm Connect; 2 Pieces Electrode of 3/32 in.; 2 Pieces Electrode of 1/8 in.; Owner’s Manual.