1.Solar Auto-Darkening Welding  Helmet  use  high quaility LCD and multilayer optical interference filter , 

 2. providing clear view and permanent UV/IR up to DIN 15.    

3.  Light state :DIN 4 , dark state: DIN9--13 stepless  adjustment.     

4. switch time: 1/20000S 

5、 certificate ：CE