Specification:Size: 29x12x20cmMasks Material: PP (Polypropylene )Main Color: RedPattern: Fire SkullLight States: DIN 4Dark States: DIN 5-13 free adjustableResponse Time(bright to dark): <1/30000 seconds(normal temperature conditions)The return Time(dark to bright): adjustable 0.15s-0.8sSensitivity(welding based on current size): adjustable low/highBattery: Lithium + Solar CellUV Protection: 16 levelsWorking Temperature: -5℃~55℃ (20℉~131℉)Storage Temperature: -20℃~70℃ (-4℉~158℉)Attention:1.The protective piece must be assembled to front and back of the filter lens, or the filter lens will be destroied.2.Any broken and scratching of the filter frame will affect the viewing angle and reduce the protective ability, please replace the frame once you find this matter.3.The protection piece should be replaced if broken and scratching. Don&rsquot touch the lens with touch objects.4. Please read carefully the user manual before you use the mask.Package includes:1 x Welding Helmet2 x Lens1 x User ManualDetails pictures:
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