Welding Helmet, ADF Controls Digital, Battery Type Solar Cells/CR2032 Lithium, Color Black, EN379 Classification 1/1/1/1, Features Lighweight Ergomical: Touch Pad Controls, Solar Powered, Graphics None, Grind Mode Yes, Helmet Material , Helmet Type Auto-Darkening, Includes External Grind Button, Includes Batteries Yes, Lens Color Clear, Light State 3, Magnification No, Number of Arc Sensors 4, Power Source Battery/Solar Cells, Series Translight+ 555