Geelife Solar Powered Welding Helmet Auto Darkening Hood with Adjustable Shade Range 4/9-13 for Mig Tig Arc Welder Mask (Black Eagle)

The light valve (LCLV) in this product can turn from light to dark at the moment of electricity arc appearing, with the principle of photoelectric. The darkness degree can be adjusted between DIN 9 and 13.
UV-IR filtering assembly consists of reflective coated glass, multi-layer light valve (LCLV) and polarizer. It can effectively block the ultraviolet radiation and infrared ray from get through, then effectively protect the eyes of the workers against the damages of ultraviolet radiation and infrared ray.
Automatic darkening helmet has wider coverage than common helmet. It can be used to protect the face and neck against the damages of the electricity arc and improve the product quality and working efficiency.
Automatic darkening helmet is widely used in shipbuilding, petroleum, Architecture, steel, boiler-manufacture and so on. The working temperature range is -5℃ - 55℃. The limited working temperature range is -10℃ - 60℃. The limited storage temperature range is -20℃ - 70℃. The relative humidity range is 20% - 80%.