NeoPixels are 5050-sized LEDs with an embedded microcontroller inside the LED . You can set the

brightness and color of each R/G/B/W with 8-bit PWM precision (so 32-bit color per pixel). The

LEDs are controlled by shift-registers and only 1 digital output pin are required to send data down.

The PWM is built into each LED-chip so once you set the color you can stop talking to the ring and

it will continue to PWM all the LEDs for you.

We have a tutorial showing wiring, power usage calculations, example code for usage, etc. for NeoPixel 

Please check it out! Please note you will need a NeoPixel library with RGBW support which is not always 

available. If you try to control these with a plain 'RGB' NeoPixel library, you'll get very weird results. Our 

Adafruit NeoPixel library does support RGBW but if you're using something else, just be aware that it might 

require some hacking.

Our detailed NeoPixel Uberguide has everything you need to use NeoPixels in any shape and size. Including 

ready‐to‐go library & example code for the Arduino UNO/Duemilanove/Diecimila, Flora/Micro/Leonardo, 

Trinket/Gemma, Arduino Due & Arduino Mega/ADK (all versions)

Comes as a single ring with 24 individually addressable RGBW LEDs assembled and tested.

Technical Details

Outer diameter: 65.5mm / 2.58"

Inner diameter: 52.2mm / 2.05"

Thickness: 3.25mm / 0.13"

Weight: 6.6g

Engineered in NYC Adafruit ®