This VULCAN™ ARCSAFE™ welding helmet is equipped with a professional quality auto-darkening lens using REALVIEW™ Lens Technology for the clearest view possible. The 1/1/1/2 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 20.5 oz. – to prevent neck strain and give you all-day comfort.