Sounds like just about every one is different! To be honest, the fact the light on mine looks so good at higher levels (very even, nice white/yellow tone) and how it looks fine in good lighting with the light low makes me very wary of returning it in case I end up with one that's worse. The effect on the text is noticeable when the light starts to get brighter but with the light very low, I thought the text looked pretty good next to my K3.
I'll personally only ever use the light at fairly low levels though, and the more I tried to read on it today, the more I could see the blue tinge. Yesterday I only noticed it at 4/5 and below, today in dull conditions I felt I could still see it at 8/9. Perhaps I'm now being over-sensitive to the blue because I know it's there.
