ULTIMATE 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 ADJUSTMENT MEETS DIFFERENT DEMANDS: Equipped with sensitivity and delay settings for adaptability for different environments and task durations; Enjoy enhanced visibility and color recognition.Light level of filter is DIN4 and the time from dark to bright state within 0.1s to 1.0s. | CLEAN COMFORTABLE VIEW: Equipped with standard 3.62’’ x 1.65’’ clear visor viewing area; Diffusion of light, variation of luminous transmittance and angular dependence allowing the welder to see clearly at different angles; Light weight (1 LB) suitable for long time working; Balanced with an adjustable and fatigue-free comfortable headgear. | INTELLIGENT, PRACTICAL AND COST-EFFECTIVE: The Auto Darkening Filter (ADF DX-500S) enables welders to adapt to various working environments by controlling the shade of the lens; Sensitivity adjustments from ambient lighting sources; Battery powered with solar panel technology for longer life (up to 5000 hrs). | GOOD FOR VARIOUS WORKING ENVIRONMENTS: Recommended to automotive, construction, and food & beverage manufacturing, metal production and fabrication, military maintenance, repair and operation (MRO), mining, oil and gas, transportation, etc.