[Auto Darkening Lens] This welding lens filter automatically adjusts shading during welding, ensuring optimal visibility and protection from harmful light without manual intervention [Solar Lens Filter] Designed with solar charging functionality, the lens operates efficiently with full automatic ON and OFF, eliminating the need for frequent battery replacements [Clear Viewing] The lightweight ABS construction and high clarity LCD optical filter of this lens provide a distortion free view while maintaining durability in demanding work environments [Helmet Compatibility] This filter lens is compatible with all automatic dimming welding helmet window openings, offers seamless integration and reliability across various applications [Protective Effect] With multi layer optical interference filters and DIN11 darkness rating, this lens ensures effective protections against strong welding arcs and occupational hazards, Manufacturer: Badafaci