Lens darkening (#10) reaction time is 1/3,600 sec.2 independent arc sensors provide continuous arc-sensing capabilitySolar-powered lens uses non-replaceable lithium batteryRatchet-style headgear features CoolMax® odor-absorbing sweatbandMeets ANSI Z87.1-2003/CSA/CE standards
770547 FFA Welding Helmet
Welding