маска сварщика с автоматическим затемненеим

·Cartridge Size:   110×90×10 mm 
·Viewing Window:   98×43 mm 
·Switch Time:
  (light to dark) 0.1ms
  (dark to light) 0.2- 0.7 S(auto-regulate) 
·Ultraviolet Protection: < 0.0003%(313 nm), < 0.006%(365 nm) 
·Infrared Protection: < 0.01%(780-2000nm) 
·Shade Range:   DIN 4 / 9－13 
·Sensitivity:   Adjustable 
·Power:   Solar with changeable li.battery
·Weight:    485g 
·Operating Temperature:- 5℃ to +55℃