Technical specifications:
1. window size: 91*41mm
2. Weight: 550g
3. Working temperature: -5-550 C
4. Storage temperature: -20-700 C
5. Ultraviolet light interception: 313N. m<0.00006%, 365N. m<0.00006%
6. Ultra red interception: 780-1300nm<0.003%, 1300-2000nm <0.009%
7. Material: flame retarding PP
8. Time from bright to dark: 0.2S
9. Time from dark to bright: 0.4S
10. Power supply: 2 AA batteries
It is one mechanic-driven automatic mask used in welding, which controls on/off of
the window by way of welding arc change. Though it is slower than LCD welding
mask, it features better protective effects as it adopts better light filter to
stop almost all harmful lights such as ultraviolet and ultra red lights in the welding,
hazards to eyes. Further more, it is not interior to LCD welding masks in
terms of opertaion effect and convenience. Compared to LCD welding masks, this
product features lower price and robustness, offering a new choice when you purchase
welding masks.
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