incandescent light

Incandescent light is produced when an electric current passes through a filament—usually made of tungsten—causing it to heat up until it glows and emits visible light. This process is called incandescence. The filament's high temperature causes it to emit a broad spectrum of light, including some heat, making incandescent bulbs less energy-efficient compared to newer lighting technologies. When the filament gets hot enough, it glows with a warm, steady light. Incandescent bulbs are simple and have been widely used, but due to their inefficiency, they are being replaced by more energy-efficient options like LEDs.