Item Type: Welding Lens_x000D_ Bright State Color Number Grade: DIN4_x000D_ Dark State Color Number Grade: DIN913_x000D_ Dark State Color Number Adjustment Method: Internal control, stepless adjustable_x000D_ Dimming Response Time: 1/10000S_x000D_ Induction Sensitivity Control Adjustment: Steplessly adjustable_x000D_ Recovery Time: 0.1S~0.8S_x000D_ Power Supply: Lithium battery/solar_x000D_ Built-in Battery Model: CR2450_x000D_ Number of Batteries: 2 (not included)_x000D_ Rated Capacity of Lithium Battery: 1200MAh_x000D_ Whether The Battery Can Be Replaced: Yes_x000D_ Working Temperature: -1065_x000D_ Number of Arc Sensors: 4_x000D_ Infrared/Ultraviolet Protection Class: DIN15_x000D_ Self-Check Function: Yes_x000D_ Low Voltage Alarm Function: Yes_x000D_ Polishing Function: Yes_x000D_ Cutting Function: Yes_x000D_ Size: Approx. 60mm / 2.4in_x000D_ 100mm / 3.9in 1The highly sensitive arc sensor and probe of this product provide professional and accurate protection. 2This welding argon arc welding solar energy automatic charging, without the use of power, is practical and environmentally friendly. 3The welding helmet lens has a clear window and a wide field of watching, which can quickly and reliably filter out welding arc light. 4This welding lens set is easy and safe to operate, and it can be used with different styles of welding masks. 5Using this welder mirror group can be well protected at work to prevent occupational diseases.1 xDimming Plate