The term RGB is based on the three-color theory. According to this theory, almost all colors can be represented by mixing the three primary colors red, green and blue. When mixing two of the three colors, the secondary colors cyan, magenta and yellow are created.
When white light is produced with RGB LED color mixing, this light appears inhomogeneous and is not well suited for lighting. To prevent this problem, a white LED is therefore added. This allows the color temperature of the light to be adjusted with the red LED, among other things.
In addition to purely decorative purposes, such as light staging, the RGBW board is used in dynamic color sequences. Among other things, in treatment rooms or even in machine lighting.
