Welding Helmet ADF Controls Analog Battery Chemistry Lithium Ion Battery Life 2 500 hr Battery Type CR2330 Color Black Compatible Suspension Brand Name Westward Compatible Suspension Grainger Part Number 45M952 EN379 Classification 1/1/1/2 Grind Mode No Helmet Material Nylon Helmet Type Auto-Darkening Helmet Width 23 cm Includes Protective Front Cover Lens Includes Batteries Yes Lens Material LCD Light State 3 Magnification No Number of Arc Sensors 2 Power Source Solar