Purpose of Warm/Cold LED modules with RGB LEDs

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RGBWW (aka RGBCCT or RGBCW) comes with cool & warm white temperature LEDs. Marketing states instead of standard 16M colors (2^8^3) that is now allows over 1T colors (2^8^5). Some even come with only a cool or only a warm white LED.

I don’t understand though, RGB can mix to form different temperatures of white on its own.

Televisions/computers/phones only use RGB (or BGR).

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