Lens darkening (#10/11) reaction time is 1/1,000 sec.
Most popular shade for most MIG and Stick applications
Solar-rechargeable lens uses non-replaceable lithium battery
Safe to operate, protects from harmful IR and UV rays at all times, even if the lens fails
Standard 2 x 4-1/4" lens cover for maximum availability
Comfortable, easy-to-adjust ratchet-style headgear
Meets ANSI standards