A desk lamp is a portable light source designed to illuminate a workspace, such as a desk or table. It typically features an adjustable arm or shade, allowing users to direct light where it is needed most. Desk lamps come in various styles, sizes, and light sources, including incandescent, fluorescent, and LED bulbs. These lamps are essential for tasks that require focused lighting, such as reading, writing, or working on a computer. Many desk lamps also include features like dimmers or built-in USB ports for charging devices, enhancing their functionality in modern workspaces.