Self-dimming welding helmet, optical class 1/2/1/3, high quality filter with 4 arc sensors provides field of view 98x43mm, dark glasses DIN 9-13, bright state DIN4, reaction time 1 / 25000s time 0.1- 1.0s, lightening and darkening time 0.3-0, 8ms. In addition, the filter provides protection against UV / IR radiation level DIN16, the helmet has a smooth sensitivity and darkness setting, and a gradual setting of the dimming rate