Dynamic white LED strips have two kind of white LEDs (1 warm and 1 cold white). It enambles to dyamically mix the 2 and have all tones inbetween also in addition to the tones mentioned on product spec. You will need special controller to do that.
With these LED strips you can achieve Human Centric Lighting.
Dynamic white LED strips are also called Dual White, Tunable White, CCT and with other names.