A lighter is a small device used to create a flame for igniting materials such as cigarettes, candles, or campfires. It typically consists of a fuel source, a spark mechanism, and a nozzle. Lighters can be disposable or refillable, and they come in various designs and sizes. The most common types of lighters are butane lighters and match lighters. Butane lighters use a pressurized gas that ignites when a spark is created, while match lighters require striking a match against a rough surface to produce a flame. Both types are widely used for their convenience and portability.