A flashlight is a portable device that produces light, making it easier to see in dark places. It usually runs on batteries and has a bulb that shines brightly when turned on. People use flashlights for various activities, such as camping, hiking, or during power outages. They come in different sizes and styles, from small keychain versions to larger, more powerful models. Flashlights are essential tools for many professions, including police officers, firefighters, and construction workers. They help these individuals navigate dark environments safely and effectively. With advancements in technology, many modern flashlights now use LED bulbs, which are energy-efficient and last longer than traditional bulbs.