The helmet features a viewing area of 92x42mm and is equipped with an automatic auto-darkening filter that protects the eyes and skin not only from severe sparks, but also from ultraviolet and infrared rays. Power is supplied by the lithium battery and solar cells. With shade levels adjustable from 9 to 13, at 1/25000s you'll have the excellent low-light capability for any type of welding. Suitable for MMA, MIG, MAG/CO2, TIG, and plasma welding and plasma cutting. The helmet meets the safety and technical standard of EN379 and ANSI Z87.1.