How does a table lamp work?

How a table lamp works begins with its cord, which gets plugged into an electrical outlet that provides a source of energy. Halogen and incandescent bulbs contain filaments. The filament in a bulb is a conductor of electricity. It’s attached to contacts made of metal that are connected to a power supply. This allows for electricity to flow through it. When the electrical current cycles through the filament, this component gets quite hot and emits light. Find a large collection of vintage table lamps on 1stDibs.