SparkFun COM-11453 LED - 10mm Cycling RGB (fast)
These color-changing LEDs take the work out of creating crazy, flashy, blinky… ness. Simply apply power and the LED will cycle through the RGB colorspace: no external controller necessary! These bright and festive LEDs make great decorations, LED “throwies”, indicator lights, etc. Typical forward voltage is 2V.
These 10mm LEDs are of the “fast-changing” variety, meaning they fade-cycle very quickly through several colors and then flash-cycle through several more colors before starting all over again.