The Blue Demon True View 9300 is a lightweight helmet for Stick, Mig, Tig, and grinding operations. This lightweight and fully digital helmet provides a large viewing area. The True View features 5 independent sensors, weighs only 1.1 lb, delivers 1/1/1/1 optical clarity, tig capability greater than 2A, a light state of DIN 3, and a dark state of din 4-8/8-13. Other Features A large viewing lens 100 x 93mmL Lightweight, only 1.1 Pounds Delay time from light to dark 0.06 - 1.2s True Color Technology for color realistic view Solar Panel & Replaceable Lithium Batteries 2 x CR2032