... up to shade DIN 16. Products meet the indicators1. argon-arc welding helmets Model:EH-209, Configuration ADF Model: EF9242. ... supply: solar cells, two lithium batteries be changed.10. argon-arc welding helmets Switching time:a) Light to dark: 1/ ... EF9040J, EF9040,EF9242,EF9848.14. Application:Mig/Tig/argon arc/arc welding/Gas welding.15. argon-arc welding helmets Colour: blue,green,silver,black,yellow ...