This VULCAN™ Premium ARCSAFE™ Auto-Darkening Welding Helmet is equipped with a professional quality auto-darkening lens using REALVIEW™ Lens Technology for the clearest view possible. The 1/1/1/1 optical clarity rating improves visibility of weld puddle and reduces eye strain. Four independent arc sensors deliver the most reliable arc detection for out-of-position welding. All of these features are packed into an incredibly lightweight shell, just 25.3 oz., to prevent neck strain and give you all-day comfort.