Product Details + 9-13 stepless variable shade. Manual external/internal controls. Superior comfort with pivot style headgear. Made of high-impact resistant nylon. Four independent arc sensors in a staggered design to deliver the most reliable arc detection. Grinding and welding modes. High speed lens 1/30,000 second. 5 amps and below TIG rating. Powered by solar cells and replaceable lithium-battery. Includes magnification lens holder. Fully adjustable nylon suspension.