What I always say is that you can see a whole lot MORE with night vision, and you don't need to rely on a beam of light that excludes over all vision (imagine it as looking at the world though a tube, you can only see so much as one time).
Of course, this should only be done sensibly and there is a time and place for it, but it never ceases to amaze me how many people never actually try it on a route they know really well.
I use the B&M Ixon IQ because of the filtered beam
It means that the light has no "tube" effect and enables better peripheral vision