An RGB LED is a type of light-emitting diode that can produce a wide range of colors by combining red, green, and blue light. Each color is created by adjusting the intensity of the individual red, green, and blue components. This allows for millions of color variations, making RGB LEDs popular in decorative lighting, displays, and electronic devices. RGB LEDs are commonly used in various applications, including televisions, computer monitors, and smart lighting systems. They are energy-efficient and have a long lifespan compared to traditional incandescent bulbs. Their versatility makes them ideal for creating dynamic lighting effects and enhancing visual experiences.