Easy Weld series of auto-darkening welding helmets are perfect for DIYers, hobbyists and novice welders. These helmets also feature a lightweight, impact resistant, fireproof shell for increased comfort and protection. Quick-fit, 5-point adjustable geared headband (with sweatband) mechanism greatly reduces head and neck strain and general fatigue caused by repeatedly lowering the helmet during day-to-day welding operations. Two optical arc sensors help protect against the hazards of arc flash. 1/1/1/2 optical clarity rating for a clear, crisp and uniform viewing area. UV/IR (ultraviolet/infrared) coating reduces scratching and discoloration of the lens. External shade selector knob with grind option allows for quick shade modifications. Internal 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 use. DIN 9 to 13 variable shade selection (TIG operable to 5 amps). 1/25,000 per second switching speed. Solar cells with non-replaceable 3V lithium batteries (CR2032) and automatic on/off technology. Forney Easy Weld Series auto-darkening welding helmets meet or exceed all related CE standards (DIN and ISO), EN166, EN175, EN379 and ANSI Z87.1 safety standards. Also ideal for metalwork artists, hobbyists, farm & ranch, weekend mechanics, welding students and small contractors.