Break out board of APA102-C RGB LEDs. This board can be strung together into a any length with any number of LEDs. The main constraints are supplying enough power periodically because the LEDs draw ~50mA per and will cause a voltage drop. APA102-C LEDs use SPI to control the LEDs. These are extremely more tolerant than the WS2812 LEDs that utilize a single PWM to address the LEDs for data timing.