Flexzion Auto Darkening Welding Helmet Solar Powered Weld/Grind Selectable Mask Tool Vivid Black Face Protector for Arc Tig Mig Grinding Plasma Cutting with Adjustable Shade Range 9-13 Universal auto-darkening welding helmet. High definition protective filter. Permanent UV/IR protection High strong materials and fire retardant; Start work immediately Fashion appearance, ultra light designing, wearing comfortable. High performance solar cells and lithium battery Sensitivity and delay time is adjustable. Grinding and welding mode can be chosen Suitable applications include Stick (arc welding), MIG (Metal Inert Gas) TIG (Tungsten Inert Gas)