Product Description Brand New Auto Darkening Welding Helmet Mask ****Description**** *Ideal for ARC, SMAW, MIG(Heavy), MIG (Light), GTAW, SAW, PAC, PAW Plasma welding processes and many others, but cannot be used for Autogen or Laser welding. *Auto-Darkening system to protect eyes and face from harmful sparks, spatter and radiation during normal welding conditions. *Lightweight / Durable Construction to Reduce Fatigue when Wearing for Long Periods of Time. *Adjustable Head Straps to ensure a tight fit so no hands required, leaving hands free for welding. *This Welding Helmet uses the latest LCD technology to automatically tint the viewing window as soon as you start welding. ****Features**** *Light state: DIN4 Dark state: DIN9-13 ( 9,11 or 13 ) Switching time: <0.5ms at room temperature Delay time Setting: slow/fast: 0.2s~0.8s Viewing area: 99 x 44 mm Cartridge Size : 110 x 90 x 5mm (4-1/3" x 3-5/9" x 1/5") UV penetration:<0.0003 at 313mm-365nm IR penetration:<0.027 at 780mm-1300nm <0.085 at 1300mm-2000mm Power turns on and off automatically Adjustable ratcheting headband with quality foam headstrap for superior comfort Full conformity with CE and ANSI Z87 Standards Polymide Nylon Construction with textured helmet surface Operating Temperature -10C to 60C 450g