Features 1、Bid farewell to eye strain and arc flash with this automatic darkening welding mask 2、Protect your eyes from welding sparks and heat. 3、Clear screen with 0.1-0.3s delay time, automatic dimming for quick and easy adjustment. 4、Solar-powered with a high-sensitivity sensor for long-lasting use. 5、Comes with an elastic belt that can be adjusted in size, making it convenient for you to tie it to your heads and relieve the burden on your ears. 6、The telescopic design of the glasses legs provides a wide range of applicability. Specification This welding eyeglass is a fine quality protective equipment that uses automatic dimming technology to automatically adjust the light during welding, protecting your eyes from strong light stimulation. At the same time, it can effectively prevents sparks and smoke from damaging your eyes, making you safer and more comfortable at work. Features: Bid farewell to eye strain and arc flash with this automatic darkening welding mask Protect your eyes from welding sparks and heat. Clear screen with 0.1-0.3s delay time, automatic dimming for quick and easy adjustment. Solar-powered with a high-sensitivity sensor for long-lasting use. Comes with an elastic belt that can be adjusted in size, making it convenient for you to tie it to your heads and relieve the burden on your ears. The telescopic design of the glasses legs provides a wide range of applicability. Specifications: Main color: black Material: PC+ABS Delay: 0.1-0.3S Operating temperatures: -5 to 55℃ Switch time: ＜5/10000s Battery: 1 * CR2032, 3V, 240mAh Open size: 150 * 150 * 65mm / 5.9 * 5.9 * 2.6in Fold size: 150 * 65 * 35mm / 5.9 * 2.6 * 1.4in Item weight: 66g / 2.3ounce Package size: 170 * 75 * 55mm / 6.7 * 3.0 * 2.2in Package weight: 101g / 3.6ounce Packing List: 1 * Welding Eyeglass 1 * Adjustable Headband Package List 1 * Welding Eyeglass 1 * Adjustable Headband