Adjustable sensitivity --- Dark state: free setting DIN 9-13. State of light: DIN 4. Extremely fast reaction --- Reaction (light to dark): High Definition Protective Filter --- You can see the welding condition clearly when welding. The welding brightness is soft and comfortable. Wide range of applications --- The welding helmet is suitable for all types of electric welding: arc welding, inert gas welding, etc., except laser welding. Delivery --- 1x KM-9000 solar welding helmet 1 + 5 interchangeable lenses, user manual. Product description Product Information Darken: (light -> dark) <1/30000 s Delay: 0.15 to 0.8 s. Adjustable Optimum operating temperature: -5 C to 55 C Slightly attenuated, in accordance with: DIN 4 Intense black, conforms to: DIN 9-13 (adjustable) UV / IR protection: DIN 16 Material: PP (refractory) Power supply: solar cell, 1 lithium cell Delivery: solar welding helmet, user manual Field of view: 96mm x 48mm Weight: about 490 grams Weight (including packaging): 910g For ARC, MIG / MAG, TIG and MMA welding; Lightweight and durable design; With the large viewing area, you can view your weld from all angles. Recommended for automotive, construction and food and beverage manufacturing, metal production and fabrication, military maintenance, repair and operation, mining, oil and gas, transportation, etc.High temperature resistant, full protection The suitable operating temperature of the mask -5 C to + 55 C, fully meet the welding needs. The high temperature environment on the mask will not cause any damage, preventing sagging of the face of the solder slag. The mask completely protects the face and neck to prevent high temperatures from damaging the skin. Reserved space, refreshing and breathable There is plenty of ventilation space in the mask to increase breathability after wearing and to prevent sweating. The mask has an adjustable headband, smooth rotation of the shift knob, can easily adjust the user's free elastic head after different situations. The ability to adjust the headband adjustment variety when you finish the locking process, then everything is placed comfortably with and firmly. Adjustable and breathable cassette: ensures that perspiration does not escape after wearing.