Changing the Astrolux ss lens.

I have received a Astrolux ss light,and looking carefully when it is on,I see that the lens,is not the same as all the other lights I have.It is not as transparent,as all my other lights.
So,I ask if you have the same problem with this ss light,and what did you do for this?
I think I could change the lens with another of better quality,(as I did with the Cometa’s aspherical),if I knew what exactly to buy.

Mine is more transparent that most other lights.