Optrel VegaView 2.5 Auto-Darkening Welding Helmet 1006.600 Opening Delay function allows welders to adjust the time it takes to switch from dark to light, making the transition easier on the eyes External controls enable welders to manually adjust their shade level from 8-12 to meet the needs of their welding application without removing their helmet Appropriate for grinding and overhead welding Shade Level Range 8 to 12. Ultra-HD Quality with True Color View and Classification 1/1/1/1