1Streamlined Design: Effectively block the smoke and dust, and cleverly avoid the fogging of the lens due to exhalation and hinder the operation. 2Automatic Darkening : The LCD screen is equipped with two highly sensitive light detectors, which will darken quickly when encountering an electric arc. 3High Quality Materials: High quality PA, PP and sponge materials, flame retardant, anti drop, high and low temperature resistant, corrosion resistant. 4Flexible Adjustment: Flexible adjustment of front, rear and size, and the forehead uses a high density sweat absorbent sponge, which is more comfortable to wear. 5Insulate Ultraviolet and Infrared Rays: Advanced photoelectric technology, power driven liquid crystal shading and color changing grade filter effectively isolates ultraviolet and infrared radiation. 6Adjustable Sensitivity: The sensitivity and response time of the LCD screen can be adjusted according to actual needs. 7Great Convenience: When not working for a long time, you can turn the welding helmet up to the top of your head to facilitate your next work. Item Type: Welding Helmet Material: PA, PP, sponge Protection Function: Anti glares, anti impact, anti splashed, anti ultraviolet, anti infrared Bright State Color Number Grade: DIN4-5 Dark State Color Number Grade: DIN9-13 Dark State Adjustment Method: External stepless adjustable Dimming Response Time: 1/15000s 1/30000s Sensitivity Control Adjustment: Internal stepless adjustable Recovery Time (Internal Stepless Adjustable): 0.15 0.8s Power Supply: Lithium battery + solar Power Switch: Automatic charging Welding Arc Sensor: 2 Ultraviolet/Infrared Protection Class: DIN16/UP TO SHADE DIN 16 Working Temperature: 15-65 Structure: Head mounted structure Service Life: 1-2 years Battery Type: 1 x lithium battery 300mAh (built in) 1 x Helmet 1 x Headgear 1. It is forbidden to subject the tool to mechanical shock.2. If the battery leaks, do not directly contact the skin or eyes with the leaked liquid. If contact occurs, rinse the contacted area with plenty of water and go to a doctor in time.