Special offer free shipping +a protective sheet lithium Auto Darkening welding helmet welding mask welding cap
Special offer with a protective sheet lithium Auto Darkening welding helmet welding mask welding cap
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Welding parameters cap
1 , welding masks valid window : 92X42mm
2 , ultraviolet / infrared transmittance: UV : 313nm-365nm \u003c0.0002%
Infrared : 780nm-1300nm \u003c0.02% 1300nm-2000nm \u003c0.075%
3, the next state : shading No. 4
4 , No. shading adjustment range : 9-13
5 , Power: Lithium Battery
6 , the power switch : Automatic
7 , the switching time :
. a) response time ( next state to the dark state ): 1/25000s ( working at room temperature )
. b) delay time ( dark state to the next state ): 0.6 ~ 0.8s
8 , Color Adjustment : Internal
9 , the working temperature : - 5 º C + 55 º C
10 Storage Temperature : -20 º C + 70 º C