A light emitting diode, commonly referred to as an LED, is an electronic device that emits light when current flows through it. However, there are several other terms used to describe this technology. One term is electroluminescent diodes, which are essentially the same as LEDs but emit light from a different type of material. Another term is solid state lighting, which encompasses all types of lighting that use solid state technology, such as LEDs. In addition, there are terms such as semiconductor lighting and diode luminescence that are often used to refer to the same technology. Regardless of the terminology used, LED technology is widely used in various applications because of its energy efficiency and long-lasting performance.