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Some US cities are turning OFF their streetlights to save costs.

Scottsburg, Indiana is switching to Light Emitting Plasma [LEP] from LUXIM.

City to save $70,000 a year AND reduce energy consumption by 50%.

City selected LEP for this high-output application, not LEDs.

Fixtures to be made locally by Stray Light Optical Technologies on site of former gasket factory


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Kevin writes in his blog:

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I will be developing a few wall and pendant products as the inspiration leads me. Of course in the course of one week, engineering documentation will be only what I need to execute the prototype, using Rhino CAD to lay out 3D models before making chips, and there will be no UL listing. However, every design will be completed by me including design, engineering, machining, fab, and finishing - which is a lot of fun.
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The first weeks design is already complete and posted with details here.

Specifications
24"L x 20"H x 6"W. Utilizes Lynk Labs 12VAC Tesla LEDs on 12" 12W SnapBrite strip with SnapDriver power supply. The reflector/heat sink extrusion was also provided by Lynk Labs. Custom on-off switch. Black wrinkle body, tumbled aluminum with clear coat, and matte white finishes. All finishes are powder coat.



All of the designs will be made available for sale to fund future work on the project through the Lumenique Product Center for anyone interested.

Nice New Year Resolution, Kevin. Good luck!
More...]]> http://ledsreview.com/blogs/editors/24.php Aixtron reported delivery of their CRIUS® MOCVD system in a 7x4 inch configuration to SemiLEDs. It will be the first 4-inch LED chip line at SemiLEDs' production facility in Taiwan.

Do you know other companies already using 4-inch wafers for HB LED chips?
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Diameter of the light output area is 79.00 mm (approx. 3"), the luminous efficacy at 186 mA is typically 23 lm/W. At 186 mA, the time to half luminance (L50) is 5,000hrs. Lifetime is strongly dependent on operating current: at 93 mA the L50 is 10,000 hours, and at 47 mA, 15,000 hrs. The tile is a little over 3 in. in diameter (80mm). Data sheet.

With significantly lower efficacy than HB LEDs and exorbitant prices I liked someones note on the subject:

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Is OSRAM planning for these OLEDs to be sold in the organics aisle of grocery stores?
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More...]]> http://ledsreview.com/blogs/editors/22.php new labels for light bulbs based on light output rather than energy consumption.

The Lighting Facts label would provide information about brightness, energy cost, the bulb's expected life, color temperature (for example, whether the bulb provides "warm" or "cool" light), as well as wattage. The label also would require disclosures for bulbs containing mercury. The bulb's output in lumens—and a mercury disclosure for bulbs that contain mercury—would also have to be placed on the bulb itself.


The Notice of Proposed Rulemaking was published Nov. 10, and comments on the change are being accepted through Dec. 28.

I'd love to hear your thoughts on the proposed changes. Do you think it will make it easier for consumers to pick out energy-efficient bulbs or will it just confuse them more?
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Luxeon I emitters are obsolete now. LED lighting pioneers either have to redesign their products or they can turn to Avago which offers cross-reference parts.



Luxeon I emitters were the top technology few years ago. But I think it's time to move on.


More...]]> http://ledsreview.com/blogs/editors/19.php http://ledsreview.com/articles/256/ Since then, specifications got better, especially efficacy and CRI. I like these modules for simplicity and build quality. Read full review later this month.


Transcend RM2


Transcend PM3
More...]]> http://ledsreview.com/blogs/editors/16.php yaroslav@ledsreview.com.

LEDs 2009 Exhibit Hours:

Tue, Oct 20 - 5:30 PM - 7:30 PM
Wed, Oct 21 - 7:00 AM - 7:30 PM
Thu, Oct 22 - 7:00 AM - 3:30 PM


LEDs 2008


San Diego Skyline
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"Tens of thousands of remote mining sites have sprung up mostly in Asia, Latin America and Africa, using as much as 1,000 tons of mercury each year...

...Mercury comes from the dozens of companies in Europe and the United States that recycle the metal from old light bulbs, batteries or industrial waste, according to the U.N. and the Zero Mercury Working Group."

http://www.msnbc.msn.com/id/28596948/


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