Model Number: 2TP110-#7321 Key Specifications/Special Features: Specifications:Item: auto-darkening welding helmetMaterial: plasticHeadgear: ratchetGraphics: noneViewing area: 90*40mmSwitching time (ms): ﹤0.1msRecovery time (s): 0.2-0.8sLight/dark state (Din): 4/9-13Working temperature: -5℃—+55℃Shade adjustment: yesSensitivity adjustment: noPower supply: solar & lithium cellsUV transmittance: 313<0.00006%, 365nm<0.000076%
IR transmittance: 780-1300nm<0.003%, 1300-2000nm<0.009%
Standards: EN175 & EN379 1/2/1