A flashlight is a portable light source used to improve vision in dark environments. It is usually held in the hand and is powered by batteries. Flashlights come in a variety of sizes and models, from small to large, which can be selected according to the user's needs. The main component of a flashlight is a powerful LED bulb, which provides bright light at low power consumption.
It is used for various purposes, such as as a light in an emergency, to guide the way while hiking or camping, to ensure proper vision at night while driving, or to check hidden places indoors or outdoors. Flashlights are very useful during Bangladesh's weather and unexpected power outages. They are popular due to their long battery life and ease of portability. Modern flashlights are water-resistant and made of strong durable materials, which ensure lasting use in various environments.