It’s strange, because my UT02 NW version has 4326K (my measurement). The fact that it is a bit warmer than my other 5000K flashlights but not yellow. In my opinion, it has a very good white quality with quite a lot of red. You can see it nicely on my chart:

Astrolux MF02 is supposedly 4500K, but I do not have this flashlight so I can not confirm with my own measurements.