Welding Helmet, ADF Controls Digital, Battery Type Lithium, Color Black, EN379 Classification 1/1/1/1, Features Digital Controls, True Color, Graphics None, Grind Mode Yes, Helmet Material Thermoplastic, Helmet Type Auto-Darkening, Includes Ratchet Headgear, Includes Batteries Yes, Lens Color Clear, Light State 4, Magnification No, Power Source Lithium Batteries, Series Insight, Standards ANSI Z87.1 - 2010, CSA, Suspension Adjustment Type Ratchet, Switching Speed 1/10000 sec