Coocheer Solar Arc Tig Mig Auto-Darkening Welding Helmet/Hood MIG TIG ARC Professional Mask Welding OccasionGreat For TIG MIG MMA, Plasma Applications with Grinding Featureetc. Max Protection LevelAuto-darkening filter switches from light to dark immediately. In event of electric failure,you remains protecting against UV and IR radiation. Comfortable To Wear Light weight (1 LB) ,large clear visor viewing area,adjustment head hood.It is suitable for your long time working. MultifunctionalStep-less Delay and Sensitivity Knob Adjustable,adaptability for different environments and task durations; Enjoy enhanced visibility and color recognition.Light level of filter is DIN4 and the time from dark to bright state within 0.1s to 1.0s. Adjustment Head HoodYou can adjust the wearing angle to ensure wearing comfort.