OSRAM Licht AG is a globally active German company headquartered in Munich, Germany. The name is derived from osmium and Wolfram (German for tungsten, also used in English), as both these elements were commonly used for lighting filaments at the time the company was founded. OSRAM positions itself as a high-tech photonics company that is increasingly focusing on sensor technology, visualization and treatment by light. The operating company of OSRAM is OSRAM GmbH. OSRAM was founded in 1919 by the merger of the lighting businesses of Auergesellschaft, Siemens and Halske and Allgemeine Elektrizitats-Gesellschaft (AEG). OSRAM was a wholly-owned subsidiary of Siemens AG from 1978 to 2013. On 5 July 2013, OSRAM was spun off from Siemens, and the listing of its stock began on 8 July 2013 on Frankfurt Stock Exchange. OSRAM's business with conventional light sources was spun off in 2016 under the name Ledvance and sold to a Chinese consortium.
- 4-Pin lamps are slim compact fluorescent lamps
- Square shape provides uniform distribution of light
- Extremely low profile good quality of light long service life
- Short and compact pin-base lamp with double-turn tubes