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Osram Unveils Compact Multi-chip LED For Interior Lighting

The Duris S 8 InGaN (indium gallium nitride) based LED offers lots of light from a small surface, particularly for use in directional retrofits


Osram Opto Semiconductors is launching the Duris S 8, a new, multi-chip, high-power member of the Duris “S" LED series.

The close grouping of the LED permits very good colour consistency in combination with a high luminous flux.

The new Duris S is primarily used in directional and omnidirectional retrofits, as well as in LED spots in indoor lighting. It is particularly suitable for directional lighting in office and business premises, as well as in the home.



Duris S 8 LED

The very good colour consistency (colour binning) in the directional retrofits is achieved through the close grouping of the LEDs, which corresponds to the coverage of a 5-step MacAdam ellipse. 3-step MacAdam grouping is additionally available for applications requiring very good colour homogeneity.

The Duris S 8 is grouped by colour coordinates at the junction temperature of 100 °C instead of at room temperature, as is customary. “In terms of colour rendering, the Duris S 8 has a CRI of more than 80. An even higher CRI will be the next step," says Janick Ihringer, the responsible Product Manager SSL at Osram Opto Semiconductors.



The Duris S 8 features a high colour consistency for directional retrofits, downlights and spots as shown above

The new Duris S also emits a great deal of light from a small surface, permitting efficient optical solutions. It measures just 5.8 x 5.2 mm and is available in two versions - with six or eight chips.

Thanks to the luminous flux of 500 lm at 200 mA, a directional retrofit is possible even with the 8-chip version.

“Compact, low-cost driver modules are available on the market for the forward voltage between 20 and 30 V. Moreover, their technical characteristics, such as a longer service life of 25,000 hours or operating temperatures of 110 °C, are perfectly tailored to t he target applications," continues Ihringer.

Osram says its Duris S 8 can also reduce the system costs of lighting systems: The Duris S package consists of an innovative plastic housing material that is not only particularly resistant to ageing at high temperatures and in short-wave light, but also costs less than the ceramic housings frequently used.

Technical data describing the Duris S 8:







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