photos are not all set to the exact same white balance
ultimately, each person has to buy and try each LED for themselves
about pinkness… it all depends what it is compared to
the sw45k is definitely the Most Pink, but the SW40 also looks slightly pink, particularly compared to low cri cool white
to me the sw35 has zero pink component, it is one of the reasons I am not a fan…
Im totally biased towards the sw45k, because it is cool enough for daytime EDC
at night, warmer colors work better… whether that is 4000, or 3500, or 3000k, depends on what other light source is in the environment, that is influencing the white balance of the observers brain.
I use 3000k incandescent house lights… what I like at night will be different than what I like during daylight hours
about pink… at night my sw45k does not look pink, because it is cooler than my ambient light, and that blue tone is more noticeable than any pink tint
conversely, during the day, I Do see the pink tint, when looking at the beam on a white piece of paper… this is because daylight is greener…
to really quantify Tint, and pinkness, we have to look at spectrum tests that include the numerical Tint value for DUV… basically, the LED with tint below BBL will have negative DUV… most LEDs have tint above BBL and this will be positive DUV… the sw45k is the main exception… it is one of the most strongly negative DUV LEDs I know of
please dont buy an LED because you think it will look as pink as my photos… those are just how the camera sees the comparison to the other lights in the photo
when using an LED light as a single source, the brain adapts its interpretation of light to make it look white… pink is a figment of the visualization… LOL