The Cornwell Quality Tools Variable Shade Auto-Darkening Welding Helmet, No. MMW811VG, features five to 13 variable shade auto-darkening lens with grind function for use in a variety of applications including: MIG, pulse MIG, TIG, pulse TIG AC and DC to 2A, stick, plasma cutting, air carbon arc cutting, oxyfuel welding, and cutting and grinding. The welding helmet is ANSI and CSA approved. It features a large 3.82" by 3.19" viewing area, opticlear shade three light state for easy set up and grinding, 1/25,000 second switching time, auto on/off, solar power supply, replaceable CR2450 lithium battery, four arc sensors, 7-point adjustable ratchet style head gear, large removable/washable sweatband, dial sensitivity, and grind mode.