... /EN 379 standards 2lifetime:2 years at least 3suitable for TIG, MIG, MAG,Arc welding 4CE auto-darkening welding helmetdarkening welding mask ... Fully automaticShade knob OutSensitivity AdjustableWelding helmet weight : 420gSuitable for ARC, TIG, MIG, Spot, Micro, Wire, AC, DC, and Plasma Welders and Plasma ...