with grind mode is a lightweight, solar-powered, high-impact nylon helmet that's designed for MMA, MIG, that's designed for MMA, MIG, TIG, and grinding applications. A large 3.62-in. x 1.65-in. viewing area allows you to see more of the workpiece at once. The lightning-fast 1/25,000-second switch time automatically darkens the lens the instant you start welding. This helmet is packed with a host of features comparable to the leading brands at a fraction of the cost. Includes a replaceable coin cell battery CR2450. Adjustable ratcheting headgear is padded for comfort.