Welding Helmet, ADF Controls Digital, Battery Chemistry Lithium Ion, Battery Life 823 hr, Battery Type Solar Lithium, Color Black, Features And Grind. Sensitivity And Delay Adjustments, Torch, Versatile 3 In 1 Built In Function: Weld, Graphics None, Grind Mode Yes, Helmet Material Polycarbonate, Helmet Type Auto-Darkening, Includes (2) Replaceable Solar Lithium Batteries, Includes Batteries Yes, Lens Color Blue, Light State 4, Magnification No, Number of Arc Sensors 2