Welding Helmet ADF Controls Digital Battery Chemistry Lithium Ion Color Tan EN379 Classification 1/1/1/2 Features Auto On/Off Four Operating Modes Quick Release Cover Lens Graphics Military Grind Mode Yes Helmet Material Nylon Helmet Type Auto-Darkening Includes (2) Inside Cover Lenses (5) Outside HDV Cover Lenses Clip-On Top Comfort Cushion Helmet Bag Includes Batteries Yes Lens Color Clear Light State 3 Magnification No Number of Arc Sensors 4 Series Digital Infinity