1) Arc start characteristics improved
    - Achieve close to 100% arc start by adopting compensation circuit 

 2) Digital controlling by micro processor 
    - Highly functional by micro processor 
    - Easy to measure voltage and current through digital display

 3) Various protection functions are built in 
    - Built-in over-input voltage detecting function
    - Function of detecting over-current caused by TIP short circuit is built in 
    - Abnormal temperature rise detecting function is built in 
    - Cooling fan control function is built in 

 4) Facilitates the automation by attaching terminal block to the exclusive welding machine

1) Arc stabilization 
    - Arc stabilization is improved through improving waveform control characteristics, Spatter reduction during welding, maintain a constant seamless arc even arc length is changed, realize beautiful welding bead 

2) Improved welding quality
    - Welding quality is improved through applying function of output compensation to the load change 
      ( maintain a constant welding bead by minimizing output current variation when torch height is changed )

3) Facilitates the automation by attaching terminal block to exclusive welding machine

4) High speed IGBT inverter controlling , minimizing spatters 

5) High-quality steel welding, Robotic matching applied