The Lincoln Electric Viking 2450 ADV Series Welding Helmets are auto-darkening and feature an integrated LED. Operators can easily activate or deactivate the light using a low-profile external control. When activated, the light illuminates the work area for increased workspace visibility during arc-off time. To save power and increase battery life when welding, the LED light automatically turns off when the operator strikes an arc and turns back on when the arc is extinguished. The helmets also feature digital controls for intuitive shade, sensitivity, delay, and mode control, as well as 4C lens technology, 1/1/1/1 optical clarity, and a 9.3 sq. in viewing area.