Incandescent lamp

An incandescent lamp produces light by passing electrical current through a thin filament, typically made of tungsten. As the electricity flows, the filament heats up to a high temperature and glows, emitting visible light. The process is simple but inefficient, as much energy is lost as heat. These lamps have been used for over a century and are valued for their warm light quality, but they are gradually being replaced by more energy-efficient options like LEDs. Incandescent bulbs are easy to use and produce a familiar, warm glow, making them a classic choice for residential lighting.