New 2024 model. IGBT Power Modules increase reliability and performance Operation down to 5 Amps DC and 10 amps AC 2T/4T/ Pedal operation modes with additional 2T/4T mode for torch amptrol operation. Pulse up to 500Hz in DC, 250 Hz AC 10Hz Advanced AC Pulse mode improves penetration on thicker metals, and can reduce warping and burn through on thinner metals Arc force control, Hot start time, Hot start intensity settings for Stick welding to improve performance VRD function to help reduce chance of shock or electrocution in areas where a VRD is required or needed for stick welding Heavy-Duty High Frequency design reduces maintenance issues and improves start reliability Easy Start Up feature in AC or DC modes to make setup quick and easy for the beginner, or the advanced user Wave form control in AC provides 4 wave forms: Sine, Triangular, Soft Square and Advanced Square Wave