APA107 5050 Digital LED is upgrade of APA102 LED, it's a type ic for the three-color RGB Diming control strip and string, This ic using the CMOS process to provide three-color RGB LED output driver to adjust the output with 256 grayscale and 32 brightness adjustment, with 2 signal output way, one is clock , another is data, the clock and data are synchronized, so that the crystal cascade piece of output movement is synchronized.