The 3M(TM) Speedglas(TM) Auto-Darketing Filter 100V is good for Stick, MIG and most TIG welding processes. It provides excellent optical clarity, user selectable dark shades 8-12, sensitivity adjustment including grinding mode, and two levels of delay. Features: * 1.73 in. x 3.66 in. ADF viewing area * Variable shade 8-12 * Low battery indicator