1)Adopting advanced inverter technique and excellent imported capacity equipment, high working efficiency, small in size and light in weight2)Adopting pulse width technique3)Protection equipment are set internally to prevent over heat, over current, lack of voltage etc. to ensure safety operation4)Unique design of output characteristic, suitable for wire-added welding and esthetic welding seam5)Soft magnetic ferrite material are used in high frequency tranformer, which is small wastage, high conversion rate, high effficiency and energy-saving6)Simple stucture, excellent technics, durability, reliablity and easy maintenance7)Ideal equipment to weld stainless steel, carbon steel, pure copper(red copper)8)Usable electrode: Acidic, alkalesent, cellulose9)Adopting passive power factor correction, and high in power factor10)Protection equipment are set to prevent input power lack of phase, lack of voltage and over voltage and strong practicability