NulSom Rainbow Matrix Shield for Arduino - 5x8 WS2812B (WS2811 Compatible) Addressable RGB LED with Integrated Drivers (Assembled) 5x8 bright and colorful WS2812B RGB LED's Pin Header and Terminal Block Assembled Easy and fun Arduino project, Zigzag layout Only one pin (Digital #9 or DI) is required to control all LED pixels Compatible with the WS2812 Arduino library, 256 brightness display and full 24-bit (16,777,216) color display