Standard Auto darkening welding helmet Light state: DIN4 Dark state: DIN9-13 Switching time: <1/25, 000S at Room Temperature Cartridge Size: 110 x 90 x 8 mm (4-1/3" x 3-5/9" x 1/3") Viewing area: 100 x 49 mm (3-11/12" x 1-11/12") Sensitivity: Stepless Adjustment Delay time: Stepless Adjustment 0.15S ~0.80S Shade Adjustment: Outside & Stepless Sensors: 2 Grinding Mode: Outside TIG Capability: >5A Power Supply: Li-Mi & Solar Combination UV & IR protection: Up to shade 15 Optical class: 1/1/1/2 Certification: CE EN379