HF Mode-High Frenquency TIG Mode 2T/4T Modes Selectable Down Slope time Selectable Post Flow time MMA Mode for various types of electrodes Adjustable Hot Start and Arc Force Generator friendly allows to work with diesel generators and to aviod failures due to its voltage spikes Protections including over-heat ,over-voltage,low-voltage and over-current Digital Ammeters for easy viewing High duty cycle for industrial applications