Halogen lamps are a type of incandescent light bulb that use a halogen gas to increase efficiency and lifespan. They produce a bright, white light and are commonly used in homes, cars, and outdoor lighting. The halogen gas allows the filament to operate at a higher temperature, resulting in improved brightness and a longer life compared to traditional incandescent bulbs. These lamps are available in various shapes and sizes, including reflector bulbs and floodlights. While they provide excellent illumination, halogen lamps can generate significant heat, so proper handling and installation are essential for safety.