light bulbs

Light bulbs are devices that produce light by converting electrical energy into visible illumination. They typically contain a filament—such as tungsten—that heats up and glows when electricity flows through it. In traditional incandescent bulbs, the filament heats up until it glows brightly, emitting light. More energy-efficient options, like LED bulbs, use modern technology to produce light through semiconductor materials that emit photons when an electrical current passes through. Light bulbs are essential for providing illumination in homes, streets, and workplaces, and come in various types optimized for brightness, energy use, and color temperature.