SF-200A 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-200A, Rated Input Voltage: AC 110-Volt and 230-Volt, Frequency: 60 Hz/50 Hz, Rated Input Power: 230-Volt/10.6KVA/46 Amp and 110-Volt/6.2KVA/56 Amp, Current Range: 230-Volt/20 Amp to 200 Amp and 115-Volt/20 Amp to 160 Amp, Force Current: 0 Amp to 60 Amp and 0 Amp to 10 Amp, Rated Duty Cycle: 200 Amp at 60% and 154 Amp at 100%, Nominal DC Open Circuit Voltage: 85-Volt, Usable Electrode: 230-Volt/1/16 - 3/16-Volt and 115-Volt/1/16 - 5/32, Power Factor: 0.93, Dimension: 14.17 in. x 7.09 in. x 11.08 in., Net Weight: 15.65 lbs., Packaging Size: 19 in. x 10.5 in. x 14 in., Packaging Weight: 22 lbs. Packing List: SF-200A Stick Welding Machine, 8 ft. Power Cord and 6-50P Plug (on the machine), 300 Amp Electrode Holder, 10 ft. Cable, 35 mm to 50 mm Connect, 300 Amp Work Clamp, 10 ft. Cable, 35 mm to 50 mm Connect, 230-Volt to 110-Volt Power Adapter, 2-Pieces Electrode of 1/8 in., Owners Manual.