The Draper Solar Powered Auto-Varioshade Welding and Grinding Helmet is a professional-grade welding helmet that provides superior protection and versatility for a variety of welding and grinding applications. Its solar-powered auto-darkening filter automatically adjusts from a clear state to a dark state in less than 0.1 milliseconds when an arc is struck, protecting your eyes from harmful UV and IR radiation. With a wide viewing area (92 x 42mm), high sensitivity control, and adjustable shade levels (9-13), this helmet ensures optimal visibility and comfort during your welding projects.