Halogen lights are a type of incandescent light bulb that use a halogen gas to increase efficiency and brightness. They produce a bright, white light and are commonly used in homes, cars, and outdoor lighting. Halogen bulbs have a longer lifespan compared to traditional incandescent bulbs, typically lasting about 2,000 hours. These lights work by passing electricity through a tungsten filament, which heats up and produces light. The halogen gas helps to recycle evaporated tungsten back onto the filament, allowing it to last longer. While they are more energy-efficient than standard bulbs, they still consume more energy than LED lights.