This product is an advanced combination of LCD glass shade as the lens, the optical lens system in the sense of the moment when arc welding to detect the emergence and disappearance of power to drive LCD color shading and so on to achieve a safe and effective filtering harmful light protection and welder's eye From the face of the arc of radiation injury. The structural design of human nature so that safe and comfortable to wear, the liberation of his hands, which greatly improved the efficiency and quality of the welding. This product is suitable for a variety of welding operations.