Incandescent bulbs are a type of electric light that produces light by heating a thin wire, called a filament, until it glows. This process occurs inside a glass bulb filled with an inert gas, which helps prevent the filament from burning out quickly. Incandescent bulbs are known for their warm light and ability to render colors accurately, making them popular for home lighting. Despite their widespread use, incandescent bulbs 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 bills and a shorter lifespan. As a result, many countries are phasing out incandescent bulbs in favor of more efficient alternatives.