1.high quality with reasonable price 2.material:pp 3.Switching time(s): 1/25000 4.Power on/off: Fully automatic

MODEL NO:CR-SZ-KS

Filter Size:  110×90×9mm 

Viewing area:  90×40mm

Light state:  DIN.3 or 4

Dark state:  DIN.9-13

Switching time(s):  1/25000

Delay time(s):  0.6

Power supply: Solar cells & lithium batteries                   

Power on/off:  Fully automatic                           

Arc Sensor:  2 pcs                                        

Weight:  450g

Shell material: PP

automatic welding helmet