Welding Helmet 1.Variable Shade #9 ~ #13; 2.Stepless Sensitivity/Delay time ... mode 4. Large view area Solar Powered Auto Darkening Welding Helmet GCH-A203-3322HApplications TIG welding, MIG welding, arc welding, plasma ... , reasonable ergonomic structure, comfortable and convenient to use.3). The helmet is made of special nylon,endure extreme temperature,impact resistance ...