Technology | Mar 28, 2014

Osram To Demonstrate The World's Most Efficient LED Replacement Tube at Light+Building

An Osram research team has succeeded in constructing the most efficient LED lamp in the world. The lamp in tubular form consumes only half the power of currently common fluorescent and LED tubes, and also achieves significantly superior colour rendering.

Lamp technical details of the demonstrator:
Lamp efficiency: 215 lm/W
Control unit efficiency (driver efficiency): 95%
System efficiency (lamp and control unit): 205 lm/W
Power consumption: 19 W
Luminous flux: 3900 lm
Colour temperature: 3000 K
Colour rendering index (CRI): 90

The record-breaking light source was developed by the central research department together with the optical semiconductor and lamp business units. "This research success represents yet another innovation push with LEDs and is based in particular upon our strategic position as integrated lighting experts," stated Peter Laier, Osram’s Chief Technology Officer and executive board member responsible for the company’s general illumination business.

The lamp to be presented by Osram at Light+Building 2014 achieves an almost unprecedented efficiency level of 215 lumens per watt, and therefore generates as much light (lumens) as currently common fluorescent or LED tubes with only half the power consumption (watts). In contrast to research demonstrations until now, the lamp with a length of 1.20 meters has an identical length to traditional fluorescent lamps. The peak efficiency is achieved both with warm and cool white light.

The record is based on a combination of high-efficiency red LED chips and green-whitish Osram LEDs containing a self-developed phosphor that is approaching production maturity. Materials with maximum reflection factors are also used as well as an innovative, integrated optic for minimizing absorption. The lamp is operated with a specifically developed control unit featuring efficiency of 95%. The demonstrator emits 3,900 lumens of warm white light (3000K) and achieves a very good colour rendering index (CRI 90).

The new forms of technology used will be integrated step-by-step into OSRAM product development, and the company is expecting series products with these forms of technology from 2015.

Osram is showing at Light+Building in Hall 2 (“Alte Festhalle”) and looks forward to your visit.

About Osram:
Osram of Munich, Germany is one of the two leading light manufacturers in the world. The company's portfolio covers the entire value chain from components – including lamps, electronic control gear and opto semiconductors such as light-emitting diodes (LED) – as well as luminaires, light management systems and lighting solutions. OSRAM has more than 35,000 employees worldwide and generated revenue of almost EUR 5.3 billion in fiscal 2013 (ended September 30). The company's business activities have been focusing on light – and hence on quality of life – for over 100 years. The company was listed on the stock exchanges in Frankfurt and Munich on July 8, 2013 (ISIN: DE000LED4000; WKN: LED 400; Trading symbol: OSR). Additional information can be found at www.osram.com

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