Stands for “Light-Emitting Diode.” An LED is an electronic device that emits light when an electrical current is passed through it. Early produced only red light, but modern can produce several different colors, including red, green, and blue (RGB) light. Recent advances in LED technology have made it possible for to produce white light as well.
These are commonly used for indicator lights (such as power on/off lights) on electronic devices. They also have several other applications, including electronic signs, clock displays, and flashlights. Since These are energy efficient and have a long lifespan (often more than 100,000 hours). They have begun to replace traditional light bulbs in several areas. Some examples include street lights, the red lights on cars, and various types of decorative lighting. You can typically identify by a series of small lights that make up a larger display. For example, if you look closely at a street light, you can tell it is an light if each circle is comprised of a series of dots.