Whether you are a professional welder or part-time enthusiast, these graphic style auto-darkening welding helmets will reflect your personal style while allowing you to perform at your best. Best in class 1/1/1/1 optical clarity rating provides a crystal-clear view of the weld. Exclusive 370 Speed Dial ratcheting headgear system provides unsurpassed comfort, convenience, and productivity. Professional level switching speeds reduce eye strain and fatigue. Extended front provides maximum protection from sparks and slag. Ultra-lightweight design is ergonomically balanced and ideal for all-day use. Powered by solar technology and one CR2032 lithium battery.