The GYS 040908 Hermes Silver is an auto-darkening welding helmet designed for various welding applications. It features a variable shade range from DIN 9 to DIN 13, with a clear shade of DIN 3. The helmet offers a viewing area of 92x42 mm and is equipped with 2 arc sensors for reliable detection. It has a fast switching time of 0.1 ms and includes a grind mode function, making it versatile for both welding and grinding tasks. The power supply is solar with a CR2032 battery. This helmet is suitable for MMA, TIG, and MIG/MAG welding.