Lamps are luminaries for energy conversion with the purpose of lighting. They differ in the way the light is generated. Known lamp types are halogen lamps (low-voltage, high-voltage), compact fluorescent lamps and LED lamps. Furthermore, arc lamps or metal vapor lamps are also available. Fixtures are integrated to insert and change lamps in luminaires. In this case, the lamp socket, for example, with Edison thread (incandescent lamps), pin base (passenger car direction indicator) or sofit base (license plate illumination), is screwed or pressed into the respective holder. Screws for Edison thread lamps (E27, E17) and GU connectors (fluorescent lamps, low volumetric lamps) are the most widely used. Depending on the model, In order to ensure trouble-free operation in the case of passenger car headlights. In addition to the use in buildings and vehicles, lamps are available in a wide range of applications. As a matter of fact, there is often no clear distinction between version and pedestal.