Features:This helmet is designed for welding and soldering which protects users' face from hard light and ensures safe operation. Large view window provides clear and larger viewing perspective, and reduce fatigue ofeyes. Four arc sensors with high sensitivity. Weld, grind and cut function available, with a switch to shift the function freely. With low power self-test button and indicator, convenient and safe to use. Specifications:Condition: 100% Brand NewMask material: PA / PPColor: BlackPanel Size: approx. 133 x 114 x 10mm / 5.24 x 4.49 x 0.39inchView Window Size: approx. 100 x 59.5mm / 3.94 x 2.34inchShadow Light: DIN4Dark Shades: DIN9-13Power Supply: Solar Energy / Lithium BatteryLithium Battery Rated Capacity: 1200mAhOperating Temperature: -10~65Arc Soldering Sensor: 4pcsProtect Against UVB Degree: DIN15Self Check: YesLow Voltage Alarm: YesGrinding Function: YesCutting Function: YesWeight: approx. 894gPackage Included:1 x Auto Darkening Welding HelmetNote:1. Please allow 0-2cm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showingslightly different from the real object. Please take the real one as standard.