NulSom Rainbow Stick for ARM Cortex MCUs / Arduino with Logic Level Converter - 1x8 WS2812B (WS2811 Compatible) Addressable RGB LED Upgraded NS-LED-02 (ASIN: B00PTEP14W) with Logic Level Converter, 1x8 ultra bright and colorful WS2812B RGB LED's 3.5V ~ 5.5V works, Ok when a signal level is 3.3V from ARM Cortex MCUs (Teensy) Easy and fun Drone/Quadcopter/RC Car/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