Specification: Brand new Type: Welding Glasses Material: Premium PP Size: Approx. 28.5x23x20cm Screen Size: Approx. 11x5cm Brightness level: DIN4 Darkness level: din9-13 Reaction Time: 1/10000s Dark to Light: 0.1-0.8 Seconds Operating Temperature: -10°C - 65°C Feature: This mask is worn during electric welding. It will be automatically sensitized after being put on, so that the welding process is not glare and does not hurt the eyes. Double filter to avoid ultraviolet and infrared radiation damage caused by arc, and avoid welding eye damage to the eyes. Solar power supply, the arc energy generated during electric welding can be converted into electric energy, thereby supplying electricity without charging,Headband and mask are freely adjustable It can also adjust the distance between the mask and the face, the darkness, the sensitivity, and the arc delay can be adjusted to suit different working environments and welding requirements. Suitable for electric welding, gas shielded welding, argon arc welding, two welding, polishing, polishing and other work areas. Package Included: 1 x Welding Helmet