Handheld flashlights are portable lighting devices designed to provide illumination in various situations. They typically consist of a light source, such as an LED bulb, a power source like batteries, and a casing for protection. Handheld flashlights are commonly used for outdoor activities, emergencies, and household tasks. These devices come in various sizes and brightness levels, making them suitable for different needs. Some models feature adjustable brightness settings or focusable beams, while others may include additional features like water resistance or strobe functions. Handheld flashlights are essential tools for anyone needing reliable light on the go.