1.Advanced MOSFET inverter technology, high working efficiency, reduced size and weight, easy to carry. 2. Simple structure, good process, reliable and durable, easy for maintenance. 3. HF pressure increasing arc initiation pulsation thermal arc initiation design, excellent arc initiation performance. 4. Unique over pressure protection design, voltage up to 380V will not damage the machine. 5. Double purposes. Suitable for TIG and MMA of various metals. 6. Unique output characteristics protection design, more suitable for filler wire welding and the welding point is not black, excellent weld appearance. 7. Minimum welding current is to 5-8A,stable arc suitable for stainless steel plate welding. 8. MMA IS easy arc initiation, stable current and has no noise. 9. Fast, small splash, do not stick to slip, excellent weld appearance. 10. Wide working voltage range, strong adaptability to electricity network, high duty cycle 11.Portable, easy to carry, suitable for DIY and family use. 12.Complete accessories: welding torch, welding cable, earth clamp, welding holder, carton box