What Is the Difference Between LED and Incandescent?

Light-emitting diode (LED) and incandescent light bulbs produce light using different technologies. A traditional incandescent bulb produces light by passing electricity through a tungsten filament surrounded by inert gases to heat the filament to approximately 4,000 degrees Fahrenheit. An LED consists of two adjoined pieces of semiconductor material. Energizing an LED causes movement of electrons across the diode, which emits photons or light.