Forney 55700 Automatic Darkening Lens, 5-1/4-Inch-by-4-1/2-Inch

The Forney 55700 replacement lens for auto-darkening welding helmets features 1/20,000th second reaction time. Constant UV/IR protection. Water and dust proof. Solar powered and self contained with built in lithium battery back up. Quick installation. Fits most brand name auto-darkening helmets using appropriate lens size. Forney Industries is one of Americas longest operating family-owned metal working product companies. Founded in 1932, Forney offers more than 5,000 products for the hardware, automotive, farm and ranch and do-it-yourself markets. If you've got metal working questions, we've got answers. Were committed to your success regardless of location size or needs. 5 1/4 inch (133.35 mm) x 4 1/2 inch (114.3 mm) Auto-Darkening Lens. 1/20,000 of a second reaction time. Shade #3 in light state and shade #10 in darkened state. Meets ANSI Z87.1 Safety Standards. Claims for warranty must be made within 90 days of the date of purchase. Proof of purchase required. This warranty does not cover any product that has been subject to misuse, neglect, negligence or accident, or that has been used in any way contrary to the purpose intended.