Welding Helmet, ADF Controls Digital, Battery Chemistry Lithium Ion, Battery Life 3,000 hr, Battery Type CR2032, Color Silver, EN379 Classification 1/1/1/1, Features Adaptive Shade Autopilot, Cooling Helmet Design, High Definition Viewing, Grind Mode Yes, Helmet Material Polyamide, Helmet Type Auto-Darkening, Includes (1) Spare Front Cover Lens, (1) Storage Bag, Includes Batteries Yes, Lens Color Green, Light State 4, Magnification No, Number of Arc Sensors 3, Power Source Battery, Solar