Auto Darkening Welding Filter

Features 1> Variable shade control from 9# to 13#. 2> Stepless sensitivity adjustment. 3> Grind mode 4> Adjustable recovery delay 5> Solar and battery powered. 6> CE ANSI approved Light State DIN4# Dark State DIN9-13# stepless regulation Sensitivity Stepless regulation Low Battery Indicator No Grinding Function Yes Dark to Light Stepless regulation Power Supply Lithium battery+solar cells Working Hours ≥5000 welding hours Switching Time 1/25000s(Room Temperature) Working Temperature -5°C-+55°C Viewing Area 90*40mm UV/IR Protection DIN16 Helmet Material PP Weight 500g