Welding Helmet, ADF Controls Digital, Battery Chemistry Lithium Ion, Battery Life 2,000 hr, Battery Type CR2450, Color Silver, Compatible Suspension Brand Name Miller, Compatible Suspension Grainger Part Number 453F34, Compatible Suspension Manufacturer Part Number 260486, EN379 Classification 1/1/1/2, Features HDV, Graphics No Graphics, Grind Mode Yes, Hat Size Maximum Not Applicable, Hat Size Minimum Not Applicable, Head Diameter Maximum 26 in, Head Diameter Minimum 21 in