Light bulbs come in several types, each with distinct characteristics. LED bulbs are the most energy-efficient, using minimal electricity while lasting tens of thousands of hours, making them cost-effective and environmentally friendly. Halogen bulbs produce bright, crisp light and are often used where color accuracy and intensity are important, though they run hotter and use more energy than LEDs. Incandescent bulbs, the traditional choice, emit a warm, familiar glow but have the shortest lifespan and highest energy consumption. Choosing between them depends on factors such as lighting needs, energy efficiency goals, budget, and desired ambiance.