Breadboard Friendly NulSom Rainbow Chip for Arduino/uC - Pack of 8 WS2812B (WS2811) Addressable RGB LED Pack of 8 chips, Breadboard friendly format & Chainable design Ultra bright and colorful WS2812B RGB LED, 256 brightness display and full 24-bit (16,777,216) color display Easy and fun Arduino/uC project Includes 4 x 15-pin headers Compatible with the WS2812 Arduino library