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.

Interior lighting

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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Dialog ups its dimmable LED driver power to 45W

Dialog Semi’s iW3600 is a 45W ac-dc LED lighting controller chip claimed to dim from 1 to 100% with <5% pop-on current.

Configurable temperature de-rating is included to prolong electrolytic capacitor life in poorly-ventilated applications.

“Designed for retrofit bulbs including external, dimmable lighting ballast…

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Single chip for LED bulbs that dim to lower CCT

Dialog Semi has introduced a single chip dual output power converter that can give incandescent-like LED dimming – where colour temperature (CCT) falls with intensity.

Called iW3640, it is a 25W 2-channel mains-powered LED driver that needs no external microcontroller, and is intended for 75-150W-equivalent A19…

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Cree gets into lighting controls

Is there no limit to Cree’s expansion into lighting?

Now that it has completed its vertical integration – making everything from lighting LED die to finished luminaires and LED lightbulbs – it has got a bit wider horizontally by adding its own range of wireless controls for office/school/commercial lighting…

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Led Engin and Gaggione aim at the stars

Led Engin and Gaggione are pitching at zoom stage lighting with a combination of LZ4-Plus LEDs and 8-45° optics, aiming at wash lamps and follow spots.

LZ4-Plus is a four die RGBW emitter, capped with flat glass, with separately-connected die that can be driven to 1…

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Try DALI with this development kit

Ismosys has introduced a development kit for LED lighting designers, engineers and installers to learn about and develop DALI (Digital Addressable Lighting Interface)-based lighting control systems.

Called LDD-314 and developed by Candeled, the  kit can be used to simulate how “LED light installations can be dynamically and flexibly…

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XQ-E: Cree puts E2 die in domed XQ package

Aiming to let customers pack a lot of light in a small space – to share a single optic for example – Cree has introduced a 1.6×1.6mm lighting LED called XQ-E.

It gets the 1mm E2 die from the XP-E2 LED, under a domed lens that squeezes output…

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High art meets interior lighting

Motoko Ishii might have designed this interactive LED chandelier, but Rohm built it – probably in more than a day.

Within it, the firm’s proprietary LED control technology creates six light and sound effects.

It will be on show in Paris over le weekend of 6-10 September at Maison…

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