Package: 1x Mask 1x Ring 1x User manual viations due to manual measurement.) Features: High strong material and fire retardant, can prevent resistance, anti-aging High definition protective filter, you can see the welding conditions clearly when welding the goods. Welding luminosity is soft and comfortable. It works the moment you start work, this product adopts advanced circuit design. Striking the arc, the observing window darkens immediately. Permanent UV/IR protection Fashion appearance, ultra light designing, wearing comfortable. High performance solar cells and lithium battery Sensitivity and delay time can be adjustable Grinding and welding mode can be chosen Ultra-low power consumption. Battery replaceable. Self-checking function. Low battery display. Specifications: Light states: DIN 4 Dark states: DIN5-13 free adjustment View area: 105x56mm 96x48mm 96x35mm Response time(bright to dark):<1/30000 seconds(normal temperature conditions) The return time(dark to bright): adjustable: 0.15S-0.8S Sensitivity(welding based on current size):adjustment: low/high Battery: Lithium battery+ Solar cells UV protection: 16 levels Working temperature: -5¡æ~55¡æ Storage temperature: -20¡æ~70¡æ Mask material: PP Warranty: 2 years Life expectancy: 10 years Style: Shackle Skeleton1/Shackle Skeleton3/Shackle Skeleton4/Big Mouth/Bronze Skeleton/Flame Skeleton/Flame Bullet/Terminator Item size: Approx.25*23*21cm