A lamp, in technical usage, is a replaceable component such as an incandescent light bulb, which is designed to produce light from electricity. These components usually have a ceramic or metal base, which makes an electrical connection in the socket of a light fixture. This connection may be made with a threaded base, two metal pins, or a "bayonet mount."

Timeline of lighting technology

Quoted: Solid State Lighting Design is the online source of global news, and resource guides for LED-based lighting and LEDs.

Solar concentrator to collect and distribute sunlight into the interior of a building via plastic optical fibers.