HighlightsProfessional Eye ProtectionDetails*Features* - *[Professional Eye Protection]- Auto-darkening filter switches from light to dark in 1/25000 sec,in event of electric failure,the welder remains protecting against UV and IR radiation according to shade 16.1/2/1/2 rating meets ANSIZ87.1-2010 and EN3794/9-13 standards. A smart choice for safety.*[Manual Adjustable Meets Different Demands]- Equipped with sensitivity and delay settings for adaptability for different environments and task dura