The 3M Speedglas Welding Lens 9002 is used with the 9000 welding helmet. This filter offers rugged, dependable protection with advanced auto darkening optics that adjust to your working conditions for a lighter, brighter and more detailed view of your work.The 3M Speedglas Welding Lens 9002 is used with the 9000 welding helmet. This lens offers rugged, dependable protection with advanced auto darkening optics that adjust to your working conditions providing a view that appears lighter, brighter and more realistic for better control of the weld puddle. Shade 3 light state with adjustable dark shades 8-12. Simplified UI, easy to operate, with a larger 2.1"x4.2" viewing area.