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.

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A luminaire originally developed for the Lenbachhaus Museum in Munich and in the Sistine Chapel in Rome is now in production at Osram.

Called Lunis 2 Track, it is aimed mainly at, you’ve guessed it, galleries and museums – as well as display of goods in retail.

CRI is over…

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L+B: Osram claims 205 lm/W wall plug efficiency

With apologies for missing it earlier: Osram has hit 205 lm/W with a LED-based fluorescent tube replacement.

That is 215 lm/W without the custom 95% efficient mains power supply.

Inside, said the firm, are:
red leds
materials with maximum reflection – not sure what that means – and
“innovative…

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L+B: Osram claims 205 lm/W wall plug efficiency

With apologies for missing it earlier: Osram has hit 205 lm/W with a LED-based fluorescent tube replacement.

That is 215 lm/W without the custom 95% efficient mains power supply.

Inside, said the firm, are:
red leds
green-whitish Osram LEDs (with close-to-production home-brew phosphor…

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Ford pick-up goes all-LED

Ford has gone to Osram and Flex-N-Gate for all LED front-lighting on its 2015 F-150 pick-up truck.

There is a little more information on the Electronics Weekly main news site…

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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.

&nbsp…

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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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Clear LED lightbulbs

Philips has introduced an LED bulb that looks a lot like a clear incandescent light bulb.

It is not the first company to do it, but it does have a nice clean look.

The spec is: 2,700K, 470 lm (’40W’), 6W input (78 lm/W), and it looks like…

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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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Luxeon Z ES gives more light and other whites

April brings a refresh to Lumileds un-lensed Luxeon Z ES range.

These little tiny (1.6×2.0mm) lighting LEDs now have higher temperature white options at all CCTs and outputs are up across the range – there is a 245 lm 5,700K 70CRI (typical 700mA 85°C).

For a…

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