What’s the Difference Between LED and Incandescent? Mild-emitting diode (LED) and incandescent light bulbs produce gentle using completely different applied sciences. A traditional incandescent bulb produces light by passing electricity via a tungsten filament surrounded by inert gases to heat the filament to roughly 4,000 levels Fahrenheit. An LED consists of two adjoined items of semiconductor material. Energizing an LED causes motion of electrons across the diode, which emits photons or mild. Incandescent bulbs are cheap and produce good mild, however they don’t final lengthy. The excessive temperatures passing by means of the filament trigger it to interrupt down over time. In addition, they’re inefficient