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Issue: 16 - 22 Dec, 2009
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Osram beams LED headlights for the Cadillac Escalade Platinum

Steve Bush
Tuesday 29 January 2008 04:14

Osram has worked with Hella to provide LED headlights for the Cadillac Escalade Platinum, to be launched this year.

"Each headlight contains seven Ostar Headlamp LEDs - five for low beam and two for high beam, said Osram. Daytime running light is provided by dimming the low beam. This means there is no need for an extra light source."

Each headlight also has a position light with Osram's white Advanced Power TopLEDs, and a side marker light with yellow Power TopLEDs.

Ostar's generally have more than one die on a heat-spreading package.

"The OSTAR-Headlamp has 5 dies driven at 700mA and consuming 12W," said an Osram spokeswoman. "The maximum current is 1,000mA."

Typical brightness per LED at 12W is 500 lm and it "now achieves peak values of up to 620 lm", said the firm.

Colour temperature is claimed to be 5,500K, "much higher than the 4,000K of xenon light, and Ostar can withstand ambient temperatures from -40 to +125C.

See also: Electronics Weekly's roundup of content related to LEDs, with a special focus on both white LEDs and coloured LEDs:

LED technology - White LEDs

LED technology - Coloured LEDs

LED technology - LEDs general

Colour coding LED info
Driving into the blue
Organic - grow your own
Green chandeliers
Into the black?
Display Trilogy
Headlight glare
Phosphorous
Sensing light
Grey area
An alternative look at the hues
and shades of LED technology

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