Halogen bulbs are a type of incandescent light bulb that contain a small amount of halogen gas, which helps improve their efficiency and lifespan. They produce a bright, white light and are commonly used in homes, cars, and outdoor lighting. Halogen bulbs operate at higher temperatures than traditional incandescent bulbs, which allows them to emit more light while using less energy. One of the key benefits of halogen bulbs is their ability to provide instant brightness when turned on. They are also dimmable, making them versatile for various lighting needs. However, they can become very hot during use, so caution is advised when handling them.