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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Anonymous 0 Comments

One problem is that green leds aren’t perfectly green, so you can’t make perfect white with them. But even if they were perfect, there’s a difference between white that’s made up of 3 primary colors and white made up of a continuous spectrum of an infinite number of colors. Sure, both will seem white to your eyes, but once the light starts reflecting off of colored objects, you will see differences. This is even worse if you’re using the lights to record with a camera.

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