Adjustable Darkening Filter Welding Helmet – Variable DIN 9-13 AST8050

Battery powered auto-darkening filter – uses two 1.5V AAA Alkaline batteries Ultraviolet Ray Transmittance Rate: 210nm – 313nm <0.000061%; 313nm – 365nm <0.000061% Infrared Ray Transmittance Rate: 780nm – 13000nm <0.003%; 1300nm – 2000nm <0.02% Variable shade adjustment from DIN 9 to DIN 13 Full face and front of neck protection Use for MIG/MAG, TIG & ALL ARC welding Cartridge Size : 122mm x 85mm x 14mm Observation Window: 90mm x 40mm UV/IR Protection: Up to shade DIN 15 AT All Times Light State: Shade DIN 3(4) Switching Time a) Light to Dark: 1/10000s b) Delay from Dark to Light: 0.2 ~ 0.4s Operating Temperature: 23°F to 131°F (-5°C to +55°C) 20 minute delay automatic shut-off if no welding occurs Meets ANSI standards Z87.1-1989 Color: Silver