A lamp base is the bottom part of a lamp that supports the lamp and provides stability. It is the part of the lamp that sits on a table or other surface and serves as the foundation for the rest of the lamp. Lamp bases come in a variety of shapes, sizes, and materials, including metal, wood, and plastic, and can be decorative as well as functional. The type of base chosen for a lamp will depend on the style of the lamp, its intended use, and the surface it will be placed on.