Auto welding helmet

Main specification

?Filter dimension : 110 X 90 x 8mm
?View size : 96 X 42mm
?Weight : 495g
?UV/IR protection : Up DIN13
?Shade number : DIN 4/9-13
?Time form light to dark : 1/10000 s
?Time form dark to light : 0.1-0.9s Stepless Adjustable
?Sensitivity : Stepless Adjustable
?Power : Solar cells
?Operation temperature : -5C皛 55C?(23    F?~ 131    F?