A desk lamp is a small, portable light source designed to illuminate a workspace, such as a desk or table. These lamps come in various styles, sizes, and brightness levels, making them suitable for different tasks like reading, writing, or working on a computer. Many desk lamps also feature adjustable arms or heads, allowing users to direct light where it is needed most. Most desk lamps use either incandescent, fluorescent, or LED bulbs, with LED lamps becoming increasingly popular due to their energy efficiency and long lifespan. Some models include additional features like built-in USB ports for charging devices or touch controls for easy operation.