Painted Automatic Welding Mask Adjustable Fire Resistant

Painted Automatic Welding Mask Adjustable Fire Resistant Technical Specification Cartridge Size: 110×90×9 mm Viewing Window: 98×52 mm Switch Time:(light to dark) 0.1ms Delay Time: (dark to light) 0.2- 0.7 S(Adjustable) Ultraviolet Protection: < 0.0003%(313 nm), < 0.006% (365 nm) Infrared Protection: < 0.01%(780- 2000nm) Shade Range: DIN 4 / 9－13 Sensitivity: Adjustable step less Battery: Solar Cell Material: PP Fire Resistant Weight: 520g Operating Temperature: - 5℃ to +55℃