1High sensitivity arc sensor and probe head provides professional and accurate protection. 2Solar automatic charging, no need to use power supply, more practical and eco& 8209;friendly. 3With a clear window, wide field of view, quickly and reliably filter the welding arc light. 4Automatic ON/OFF, easy and safe to operate. It can be used with different styles of welding masks. 5You will be well protected at work to prevent occupational diseases. Condition: 100% Brand NewItem Type: Solar Auto Darkening Welding LensMaterial: ABSBright State Color Number Grade: DIN4Dark State Color Number Grade: DIN913Dark State Color Number Adjustment Method: Internal control, stepless adjustableDimming Response Time: 1/10000SInduction Sensitivity Control Adjustment: Steplessly AdjustableRecovery Time: 0.1S~0.8SPower Supply: Lithium Battery/SolarBuilt-In Battery Model: CR2450 (Not Included)Number of Batteries: 2pcs (Not Included)Rated Capacity of Lithium Battery: 1200mAh (Not Included)Whether the Battery Can Be Replaced: YesWorking Temperature: -1065Number of Arc Sensors: 4pcsInfrared/Ultraviolet Protection Class: DIN15Self-Check Function: YesLow Voltage Alarm Function: YesGrinding Function: YesCutting Function: Yes 1 x Dimming Board1 x Accessory Bag