The Metal Man “Real Flame” 9-13 Variable Shade Auto-Darkening welding helmet plus Grind Mode features a light weight/comfortable design with the graphics to show your style. It uses a sealed non-replaceable lithium battery for the intial lens darkening and then Runs off solar power or light from the welding arc. It features 2 arc sensors and a 3.86” x 1.73” viewing area. Adjust your shade control from 9 to 13. Made to fit right, it features an adjustable headgear to allow you to make it fit your way. With ANSI and CSA approval, the Metal Man ARF8550SGC Auto-Darkening helmet is safe, functional, and attractive to users. 1 year warranty.