Skeleton Custom CE En175/En379 Solar Auto Darkening Welding Mask

Our auto-darkening welding helmets are desighed to protect the eyes and face from sparks, spatter and hamrmful radiation under normal welding conditions. Auto-darken Filter automatically changes from a clear state to a dark state when an arc is struck, and it returns to the clear state when welding stops * Battery Powered with Solar-assist for Long Life( up to 5000 hrs). With no charging required Feathure Auto-off Circuitry at 15-20min and Low Battery Indicator Two Independent Arc Sensors. Lens darkening Reaction is 1/25000 sec Ideal for MIG and STICK Welding, TIG Rating (5Amps) Variable Shade 9-13, Variable Sensitivity and Delay Controls. Light weight, Well balanced Design, Fully Adjustable Headgear provides Comfort and Reduces Fatigue. Includes Replacement Cover Lenses. Shade No. in clear state DIN4#  welding helmet Shade No. in dark state DIN9-13# steplessregulation(Internal) DIN9-13# stepless regulation(external) Sensitivity fixed  solar welding helmet Stepless regulation(external) Grinding mode Yes  auto darkening welding helmet No Delay time 1S    solar welding mask 1S Power supply Two replaceable AAA alkalines+solar inner lithium cell +solar(No need change) Working hours >=3000 welding hours >=5000 welding hours Switch time <1/25000S  ( ROOM TEMPERATURE ) Working temperature ,-5°C-+55°C View size 90*40mm UV transmittance 313nm<=0.00006%, 365nm<=0.000076% IR  Transmittance 780-1300nm<=0.003% , 1300-2000nm<=0.009% Functions : with internal shade number regulation with external shade number regulation with internal shade number regulation