Co-Authored By:
Strictly speaking, an individual LED can't change color. Instead, a color-changing LED is made up of three separate LEDs in one casing, with a micro-controller operating them. The three LEDs are red, green and blue, so any of these colors can appear at a specific time simply by passing a current through one LED.
Also asked, can you change the color of LED lights?
Using tissue or any thin paper is one way to change the color of LED light. If you need multi color led lights but all you have at home are white LEDs, you can change them to any color you want by following these easy steps. White LED lights. Tissue paper or any thin paper.
Beside above, do LEDs change color over time?
Most light sources will degrade over time and the LED is no exception. The electrical and thermal stresses on the components will have an effect on the colour performance eventually. Most manufacturers only provide colour performance data on a fixture that is fresh out of the box.
Thus, the actual colour of a light emitting diode is determined by the wavelength of the light emitted, which in turn is determined by the actual semiconductor compound used in forming the PN junction during manufacture.