Not recommended for industrial applications or repetitive tack welding applications. Meets ANSI Z87.1+ and CSA standards. ClearLight Lens Technology optimizes contrast and clarity in welding and light states. Independent arc sensors provide dependable arc detection. Adjustable Sensitivity allows operator to adjust lens sensitivity for varied lighting conditions and weld amperage Auto-On/Off: Lens automatically turns on at the strike of an arc Meets ANSI Z87.1+ and CSA standards.