Outside the curtain quantity and sensitivity adjustable can make the operator operation more convenient, with manual level setting function automatically change light welding goggles. Automatic dimming lens automatically dimming, this is a choice when light from the number of welding inspection. Suitable for electric welding protection, anti- , face protection, grinding operations, etc. Auto-Darkening eyes mask are designed to protect the eyes from spark, spatter,effectively block the ultraviolet, infrared, visible light is more easy to pass,reduce the harmful radiation under normal welding conditions Simple and portable structure, very safe, comfortable to wear.