Welcome to our factory's hot-selling product - Auto Darkening Welding Face Mask Helmet with Test Mode. This welding helmet is specially designed to protect the welder's eyes and face from harmful radiation and burns caused by welding. The auto darkening filter automatically darkens the lens when the welding arc is detected, providing clear vision during welding operations. The test mode allows the user to check the sensitivity and adjust the shade level of the lens. Our factory produces high-quality welding helmets with advanced technology and strict quality control to ensure the safety and comfort of our customers. Get your hands on this amazing welding helmet today and experience the difference in your work!