Lighting

LED Direct Replacement Bulb

The Verde Series LED GU24 direct replacement lamp by American Illumination (Los Angeles, CA) is one of the few GU24 direct replacement light bulbs available, and is the only one compatible with the GU24 locking ring for simple transitions from CFL to LED. The Verde GU24 bulb replaces the 13W CFL, consuming only 8.5W of total power and emitting over 700 lumens (warm white) for an 80+ lumens per watt efficacy.

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New Family of Tiny Crystals Glow Bright in LED Lights

ORNL scientist probes atomic structure to improve material’s luminescence efficiency

Minuscule crystals that glow different colors may be the missing ingredient for white LED lighting that illuminates homes and offices as effectively as natural sunlight.

Posted in: Briefs, Lighting
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Fine-Tuning Emissions From Quantum Dots

New analysis should enable development of improved color displays and biomedical monitoring systems.

Tiny particles of matter called quantum dots, which emit light with exceptionally pure and bright colors, have found a prominent role as biological markers. In addition, they are realizing their potential in computer and television screens, and have promise in solid-state lighting. New research at MIT could now make these quantum dots even more efficient at delivering precisely tuned colors of light.

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Silicon-Based Nanoparticles Could Make LEDs Cheaper, Greener To Produce

Light-emitting diodes, are the most efficient and environmentally friendly light bulbs on the market. But they come at a higher up-front price than other bulbs, especially the ones with warmer and more appealing hues. But researchers at the University of Washington have created a material they say would make LED bulbs cheaper and greener to manufacture, driving down the price. Their silicon-based nanoparticles soften the blue light emitted by LEDs, creating white light that more closely resembles sunlight.

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Metallurgists Use Microwaves to Create Nanocrystal Semiconductors

University of Utah metallurgists used an old microwave oven to produce a nanocrystal semiconductor rapidly using cheap, abundant and less toxic metals than other semiconductors. They hope it will be used for more efficient photovoltaic solar cells and LED lights, biological sensors, and systems to convert waste heat to electricity.

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Pet Foods Facility Anticipates Less Than Two Year Payback with LED Lighting

The new 300,000 square foot Diamond Pet Foods facility in Ripon, Calif. went online in May 2012 with more than 500 high-efficiency, Class II Div 2 LED fixtures by Dialight. Through combined energy and maintenance savings, the company expects a full return on its investment in less than two years and will benefit from improved visibility thanks to the clear, white light of the LEDs.

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LED Tube Lamp Brightens Auburn SuperMall With 50% Less Energy

Aleddra LED Lighting, a business unit of Lightel Technologies, Inc., recently partnered with management at the Auburn SuperMall in Auburn, WA to improve the quality of light throughout the mall while at the same time reducing lighting energy consumption by 52%.

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Lighting Company Retrofits Headquarters With Edge-Lit Light Guide Technology

Global Lighting Technologies, a manufacturer of LEDbased, edge-lit light guide solutions for general illumination applications, has retrofitted its North American sales & engineering headquarters with LED ceiling lights. In a classic example of practicing what it preaches, GLT has replaced the facility’s existing fluorescent lights with its UL-certified LED-based 2' × 2' and 1' × 4' ceiling lights throughout the building. The new lights utilize GLT’s edge-lit light guide technology, where the LEDs are strategically spaced along one or two edges of the light guide to achieve high levels of efficiency using the fewest LEDs, with the highest possible uniformity. Each of the ceiling lights utilizes 100 LEDs, with 50 LEDs spaced along each of two edges of the 2' × 2' downlights, and 100 LEDs spaced along one edge of the 1' × 4' ceiling lights.

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Plymouth (U.K.) City Council Switches to Solid-State Lighting

Plessey is working closely with Plymouth City Council in the U.K. to help achieve the Council's ambitious carbon reduction strategy for all their managed buildings and infrastructure. Plessey is replacing the existing fluorescent lighting in Douglass House with solid-state LED luminaires that combine design and lighting excellence with energy savings.

Posted in: Application Briefs, Lighting
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LEDs Go Organic: The Science behind OLED Lighting Systems

Organic is a term more often associated with vegetables than lighting systems, but some LED manufacturers are now incorporating organic molecules into their products to meet specific application demands. The result is a new type of LED system that provides a broad illumination area and extraordinary color rendering.

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