1. High duty cycle and reliabilit 2. HF for easier Arc Star 3. MCU Control makes all settings by manual on front panel with smart knob 4. American operation panel and European operation panel are optiona 5. Multi-Waveform output includes square wave, sine wave, triangular wave and trapezoidal wav 6. AC balance range is 50%-85 7. Minimum welding current is 5Amp 8. Wireless hand remote control and Wireless foot control are availabl 9. Finger control on TIG torch is availabl 10. Digital Ammeters for easy viewin 11. Protections including over-heat, over-voltage, low-voltage and over-current 90-275 Volts input can be worked in Global marke 12. PFC technology makes power factor more than 0.99 and energy saving