Product category:
Light Emitting Diodes (LEDs)
News Release from: Philips Lumileds Lighting | Subject: Luxeon K2
Edited by the Electronicstalk Editorial
Team on 02 June 2006
High-power LEDs boast double the light
output
The increased drive current capability of Luxeon K2 LEDs enables development of brighter LED-based lighting applications than ever before.
The increased drive current capability of Luxeon K2 LEDs from Philips Lumileds is transforming the market for solid-state lighting technology by enabling development of brighter LED-based lighting applications than ever before As the first and only LED tested and binned at 1000mA with specified minimum performance and no sacrifice in lumen maintenance, Luxeon K2 allows more light to be extracted from each emitter than any other single-chip LED
This article was originally published on Electronicstalk on 2 Feb 2006 at 8.00am (UK)
Related stories
LEDs claim new industry benchmark
Luxeon K2 LEDs claim new industry benchmarks in a variety of areas including light output, temperature tolerance and drive current.
Power LEDs offer more white options
Expanded range of white emitters means the Luxeon K2 series is now available with correlated colour temperatures from 2670 to 10,000K.
This not only delivers a lower cost per lumen but also expands LED lighting design possibilities far beyond the previously standard 350mA LEDs.
"At 1000mA, Luxeon K2 delivers more than twice the light output than can be produced at 350mA while maintaining the lifetime, quality and robustness of the device", noted David Eastley, Luxeon K2 Product Manager.
"This paves the way for an explosion in the quantity and variety of LED luminaires".
Further reading
Bright showing from long-life LEDs
The Luxeon III is a new high-power 100kh-life LED that generates typical light output of 65 and 80 lumen from a single emitter at 700 and 1000mA operation, respectively.
RGB LED backlight is ready to use
The Luxeon DCC is billed as the first fully assembled LED-based RGB light source for use as an alternative to cold cathode fluorescent lamps in LCD backlights.
Until the release of Luxeon K2, high power LEDs typically could be driven at no more than 350mA without significantly reducing the effective life of the emitter.
Many LED applications require significantly more light output than is possible at that drive current, and even incremental gains in light output and efficacy at this level are not enough to meet the growing demands of lighting designers for brighter LED products.
Philips Lumileds recognised the need for a higher drive current through ongoing discussions with the lighting community.
Lighting designers clearly communicated the need for more light, reduced cost per lumen, more thermal flexibility, and the ability to incorporate the same LED in a range of applications to minimise manufacturing costs.
These needs could only be accomplished by increasing the drive current.
To do that, Philips Lumileds engineers focused on improving the LED die and packaging technologies required to manage the additional heat.
These improvements, delivered in the Luxeon K2 LED, translate into increased design flexibility.
Lighting designers can now get more light from fewer devices, minimise their heatsink requirements, and optimise their system for the exact amount of light required for the application.
"The impact of increasing drive currents from 350 to 1000mA and higher is as significant to the market as the shift six years ago from 20mA LEDs to the first Luxeon I LEDs that operate at 350mA", Eastley noted.
"This will significantly expand the market and create new opportunities for high power LEDs in real lighting applications".
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