NulSom Rainbow Stick for Arduino/uC - 1x8 WS2812B (WS2811 Compatible) Addressable RGB LED with Integrated Drivers NS-LED-02 (v1.2), 1x8 ultra bright and colorful WS2812B RGB LED's Easy and fun Arduino project (Not include Arduino) 256 brightness display and full 24-bit (16,777,216) color display Sticks are chainable (DI: Data In, DO: Data Out), Compatible with the WS2812 Arduino library Need to use a high speed level converter (74AHCT245, etc.) or 3.7~4.2V power supply instead of 5V when a signal level is 3.3V from Naze32/Teensy [Please consider NS-LED-02T with built-in logic level converter.]