1. HIGH QUALITY AND STABLE CHARACTERISTIC, IT CAN BALANCE AUTOMATIC WHEN VOLTAGE IS WAVING.  

2. HIGH DUTY CYCLE, WITH PROTECTION OF OVER-VOLTAGE, BE ABLE TO WORK CONTINUOUSLY.     

3. STABLE ARC, BEAUTIFUL WELDING SEAMLESS, DEEP BATH, LITTLE SPLASH AND ADJUSTALE ARC FORCE.      

4. BE ABLE TO DIG BY COMPRESSED AIR AND ARC OF CARBON STICK ABOVE 500AMPS.