Professional Auto Darkening Welding Helmet with 3 View Windows, DIN 4-13 Optical 5 Sensors EN379

Auto‑darkening welding helmet with three viewing areas, main viewing window about 100 mm × 93 mm (3.94 in × 3.66 in). Cartridge measures about 11.0 in × 7.9 in × 7.9 in (28 cm × 20 cm × 20 cm). Solar‑battery powered, sensitivity 2 A, switching time 1/10,000 s, helmet shell made of nylon; not a smart device. Brand TywelMaster.