LED Luminaries

LED news and insight from our technology editor Steve Bush, who has been messing with LED lighting for more years than he would care to remember.

Components

Lumileds hits 10,000 lm with CoB arrays, at 100 lm/W

Aiming at replacing 70-100W ceramic discharge metal halide (CDM) lamps, Lumileds has introduced ‘Luxeon CoB 1211′ arrays – with a 19mm diameter light source on a 28x28mm tile.

Efficacy is 93-130 lm/W, depending on colour temperature and CRI of the luminaire.

The 10,000 lm and 100 lm…

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Molex pre-wired LED array holder

Aiming to get secondary optics closer to array-style LEDs, Molex has introduced a low-profile COB holder. 

“The key design challenge for LED accent lighting luminaires is to get secondary optics very close to the light emitting surface of the LED. Any reduction in the distance between the LED…

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LED Engin's third generation LuxiTune dims to 0.5%

LED Engin’s ‘LuxiTune Generation 3.0′ light engines can replace a 120″ halogen lamp, dim to 0.5%, and have two selectable dimming curves: Halogen-like 1,600K to 3,000K, and colour temperature (CCT) tuning between 2,100K and 4,300K. 

For lots more on LuxiTune 3.0…

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Gaggione brochure

Gaggione has released an over-view of its range.

Called Shaping Your Light, it includes the firm’s 67mm collimators, which must be about the biggest cast collimators out there, short of LED Engin’s 80mm LLNS which have the centres hollowed out to reduce stresses in the plastic.

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Element14 launches Osram drivers and light engines

Element14 is to sell Osram’s PrevaLED range of light engines and Optotronic drivers – essentially, Osram’s kit of parts for luminaire makers.

The light engines are launched with and without integrated drivers and come in a variety of luminous flux and four shades of white from warm white to…

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Luxeon Lime on interesting substrate

A couple of Luxeon Limes – the most efficacious production LEDs yet – have arrived in the Electronics Weekly office for our Engineer in Wonderland to play with.

They are on interesting substrates…

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Marvell aims for Zigbee smart bullbs

Marvell’s 88EM8189 ac-dc LED lighting driver chip is not only phase-cut dimmable, but has an I2C interface to allow digital control – particularly from its 88MZ100 Zigbee tranceiver.

It can be used in either non-isolated buck-boost or isolated fly-back designs – primary-side sensing allows isolated…

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