Diffused 5mm Fast Flashing RGB LED
Channel: Adafruit Industries
Date: 2012-02-21

https://www.adafruit.com/products/680

These are very interesting 5mm diffused RGB LEDs - instead of having 4 pins to control 3 LEDs, they have only two leads - power and ground. When powered, the LEDs perform a flashing effect with all the colors. See the video below for the timing and look. There is no way to change the 'program' or rate, its burned into a little chip that is inside the LED itself. If you need to have an RGB perform a particular arrangement, check out our RGB LEDs that you can easily control with a microcontroller:

http://www.adafruit.com/products/159

We also have a version that's a 'slow fading' RGB color cycle:

https://www.adafruit.com/products/679