5Vdc
https://www.adafruit.com/product/2226
https://www.adafruit.com/product/1643
LED options:
https://www.adafruit.com/product/3042
https://www.adafruit.com/product/4333
https://www.adafruit.com/product/2226
https://www.adafruit.com/product/2858
https://www.adafruit.com/product/2851
https://www.adafruit.com/product/2854
https://www.sparkfun.com/products/12664
https://www.sparkfun.com/products/14357
https://www.sparkfun.com/products/14353
https://www.sparkfun.com/products/14967
https://www.sparkfun.com/products/15200