Incandescent technology refers to a method of producing light by heating a filament until it glows. This process occurs in incandescent bulbs, which typically use a tungsten filament encased in a glass bulb filled with an inert gas. When electricity passes through the filament, it heats up and emits visible light. Although incandescent bulbs have been widely used for over a century, they are less energy-efficient compared to newer lighting technologies like LED and CFL bulbs. As a result, many countries have implemented regulations to phase out incandescent bulbs in favor of more energy-efficient options.