Incandescent lamps are a type of electric light bulb that produces light by heating a thin filament, usually made of tungsten, until it glows. When electricity passes through the filament, it heats up and emits visible light. These lamps are known for their warm, yellowish glow and have been widely used in homes and businesses for many years. Despite their popularity, incandescent lamps are less energy-efficient compared to other lighting options, such as LEDs or CFLs. They convert a significant amount of energy into heat rather than light, leading to higher electricity consumption. As a result, many countries are phasing out incandescent bulbs in favor of more energy-efficient alternatives.