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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:
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We also have a version that's a 'slow fading' RGB color cycle:
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![](https://s2.save4k.ru/pic/jnBhuo4SdB4/maxresdefault.jpg)