Recommendations for USB powered high quality cool white LED Strips for Detolf?

I've had Detolfs with Lukelights for a year now and already had to replace some of them pretty fast because some of the LED's starting to emit a more warmer white as opposed to the cool white I ordered them.

This inconsistency is bugging me as I'd love to have a uniform clean look for my collection, all in white light.

I can only conclude that Lukelights, although nicely made and affordable, are incredibly cheap quality and therefore the LED strips even when from the same batch all differ a bit in color temperature. I'm kind of a a perfectionist so I see the color difference immediately.