The Jackson Safety 6 Feet Under Auto Darkening Welding Helmet, No. 47100, is designed to provide an ideal view of the welding arc, decrease eye strain, and provide a comfortable user welding experience. The ADF features a switching speed of 1/25,000 and four arc sensors to keep eyes protected, even when used for extended periods. With a 1/1/1/1 rating and a patented 370 Speed Dial, the Jackson ratcheting headgear offers optical clarity with an adjustable fit. The welding helmet is ideal for a wide range of welding operations.