The Forney Series of auto-darkening welding helmets are ideal for the experienced do-it-yourselfer (DIY), light contractor, farmer and rancher. This series of welding helmets offer easy to use technology, reliability and value. The Forney auto-darkening welding helmets feature HD optical clarity with true color technology that allows you to clearly see what you're doing, resulting in clear and precise welds. They also encompass an adjustable ratchet headband with increased padding for extra comfort. Both the technology and headgear allow you to weld for long periods of time without feeling the discomfort of a standard helmet. Shell And Headgear Features Lightweight, impact resistant, fireproof shellDual crown strap headgear with multi-directional adjustment for a more comfortable fitQuick-fit, 5-point adjustable geared headband (with sweatband) mechanism greatly reduces head, neck strain and general fatigue caused by repeated lowering of the helmet during day-to-day welding operationsViewing Area 5.97 square inches (3-5/8" x 1-5/8") viewing areaHigh definition optical clarity with true color technology for a more natural viewing experienceTwo optical arc sensors help protect against the hazards of arc flash1/1/1/2 optical clarity rating for a clear, crisp and uniform viewing areaUV/IR coating to reduce scratching and discoloration of the lensPerformance Driven External shade selector knob with grind option allows for quick shade modificationsInternal switch controls include both sensitivity (high-low) and delay (min.-max.). Internal controls help minimize the risks of damage to the controls themselves or accidental setting changes while in useDIN 9 to 13 variable shade selection (TIG operable to 5 amps)1/25,000 per second switching speedSolar cells with non-replaceable 3V lithium batteries (CR2032) and automatic on/off technologyCompliance Forney Series auto-darkening welding helmets meet or exceed all related CE standards (DIN and ISO), EN166, EN175, EN379 and ANSI Z87.1 safety standardsReplacement Parts And Accessories 55759, Forney Easy Weld Series and Forney Series Outer Protective Lens, 2-Pack55760, Forney Easy Weld Series and Forney Series Inner Protective Lens, 2-Pack55761, Forney Easy Weld Series and Forney Series Outer Protective Lens, 5-Pack55762, Forney Easy Weld Series and Forney Series Lens Kit, 5-Pack (2 Inner Lenses and 3 Outer lenses)55767, 1.0 Diopter Magnifying Lens for Forney Easy Weld Series , Forney and Forney PRO Series Auto-darkening Welding Helmets55768, 1.5 Diopter Magnifying Lens for Forney Easy Weld Series , Forney and Forney PRO Series Auto-darkening Welding Helmets55769, 2.0 Diopter Magnifying Lens for Forney Easy Weld Series , Forney and Forney PRO Series Auto-darkening Welding Helmets55770, 2.5 Diopter Magnifying Lens for Forney Easy Weld Series , Forney and Forney PRO Series Auto-darkening Welding Helmets55786, Ratchet Headgear for Forney Series Auto-Darkening Welding Helmets.