Ring with 24 RGB WS2812 LEDs and integrated driver
Neopixel ring with 24 RGB LEDs that can be individually controlled, each of which can produce 256 shades of its color, resulting in a total of 16,777,216 colors.
The data channel for communication is a One-Wire serial type and can be controlled with microcontrollers like Arduino.
You can set the refresh frequency as desired to make certain light effects imperceptible. Multiple rings can be cascaded together to create various effects.
Power supply: 5 Vdc.