Auto darkening welding helmet tools welder's mask goggles/welding filter/lens for arc mag mig tig cnc welding machine

Adopt single-chip & software control technology. The shade number is accurately controlled at-10°C+60°C(14°F to140°F).
The products are in full conformity with European standard em379& American standardZ87.1
Particular digital design make operation more intuitive and easier.
Equip with larger-area solar cells and two lithium barteries changeable which extends the life of the filter effectively.
Large view window dimension (98 X 41mm) for observation easily.

Cartridge side : 110*90*10
View Windows : 98*43
Shade Range : 3/9-13
Delay Time : 0.2~0.8s adjustable
Sensitivity : Adjustable
Power supply : Both solar cell and lithium batteries