Auto-darkening filter automatically changes from a light state to a dark state when an arc is struck, and it returns to the light state when welding stops. Solar cells, no battery change required. This solar auto darkening welding goggle features anti-ultraviolet, infrared radiation, anti-glare. The welding goggles with adjustable shade are designed to protect the eyes from , and harmful radiation under normal welding conditions. Easy and safety to operate, light weight design., Weight: 0.9259415004 Pounds, Manufacturer: Prterver