The LED light source of the LED digital tube can utilize the three primary color principles of red, green, and blue. Under the control of computer technology, the LED digital tube can produce 256 levels of grayscale for the three colors and mix them freely. The LED digital tube can produce 16777216 colors of 256 × 256 × 256. The LED digital tube forms a variety of LED digital tube combinations with different light colors, achieving rich and colorful dynamic change effects and various images of the LED digital tube. The energy-saving and pollution-free nature of LED digital tubes is considered environmentally friendly. LED digital tubes are driven by DC and have ultra-low power consumption and nearly 100% electro-optical power conversion. They have the same lighting effect as LED digital tubes and are more energy-efficient than traditional light sources by over 80%.