Full-color LED lights are generally color tubes integrated with red, green, and blue monochromatic tubes. There are usually two ways of integration: one is to design three RGBs on the same aluminum substrate, and the other is to bind three RGB chips into an LED package. When the full-color LED lamp is working, the required colors are synthesized according to the addition of three colors, red and green are synthesized into yellow, red and blue are synthesized into magenta, green and blue are synthesized into cyan, and red, green and blue are synthesized into white. The synthesized color also depends on the luminous grayscale of the primary color. The luminous grayscale of a single color is different, and the synthesized color is also different. If each color produces 256 gray levels and controls the gray levels of the three colors individually, 256*256*256 (16777216) colors can be combined, that is, 16 million colors can be synthesized using the RGB three primary colors colour. In actual product design, if a variety of units are used, under the control of software, more delicate and vivid patterns and animation effects can be displayed.

   The grayscale of LED light emission is determined by the driver chip. The full-color driver chip has a built-in grayscale generator. Generally, PWM is used to control the LED to quickly turn on and off at a high frequency that cannot be distinguished by the human eye to achieve grayscale control. Common channel chips on the market have three gray levels: 8-bit (256), 10-bit (1024) and 13 (8192).