"Incandescent" refers to the emission of light from a material that is heated to a high temperature. When an object, such as a light bulb, is heated, it glows and produces visible light. This phenomenon occurs because the energy from the heat excites the atoms in the material, causing them to emit photons. The most common example of incandescent light is found in traditional incandescent light bulbs, which use a thin filament made of tungsten. When electricity passes through the filament, it heats up and produces light. Although these bulbs are being replaced by more energy-efficient options like LEDs, they are still recognized for their warm light quality.