This auto-darkening welding helmet offers superior protection and convenience for welding tasks. With a viewing area of 90x35mm and a cartridge size of 110x90x10mm, it provides a clear view of the work area. The helmet features two arc sensors, a fixed shade of 11 in the dark state, and a light state of DIN 4. The sensitivity and shade control are unadjustable, ensuring consistent performance. Powered by solar cells and a rechargeable battery, no battery change is required. The switching time from light to dark is an impressive 1/5000s, while the dark to light transition takes 0.15-0.45s automatically. It offers UV/IR protection up to DIN 16 and can handle low amperage TIG welding of ≥20amps (DC) and ≥20amps (AC). Designed for operation between -5°C to +55°C, this welding helmet is a reliable choice for professional welders.