efficient lighting Archives – The Green Optimistic

Energy Efficient Lighting Industry Blooming in 2013

Mila Luleva — Thu, 02 May 2013 17:52:23 +0000

The 2012 Energy-Efficient Lighting Industry survey conducted by the leading manufacturer Precision-Paragon was released last week, indicating that the industry expects growth in energy-efficient lighting revenue in 2013. More than 4,000 energy efficiency professionals took part in the annual survey. In the past few years, these experts have been extremely accurate in their predictions. Hence, the […]

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More Efficient Lighting Not Necessarily Meaning Less Energy Consumption, Paper Says

Ovidiu Sandru — Mon, 06 Aug 2012 18:39:08 +0000

Two Sandia University researchers, Jeff Tsao and Harry Saunders have recently underlined what you may never have thought of LED lights. Historically, when a new, more energy-efficient lighting source had been invented, people didn’t use less energy, but instead used more light to do work. The first time the idea broke through in 2010, it […]

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Chinese LEDs Get 122% More Efficient by Copper Substrate Transplant

Ovidiu Sandru — Fri, 15 Jun 2012 17:49:26 +0000

Gallium nitride (GaN) light emitting diodes, or commonly known as LEDs are usually grown on a layer of silicon – that abundant material that makes up 90+% of Earth’s crust. A team of Chinese researchers have improved their efficiency by transferring them onto a layer of copper. The GaN crystals on the copper substrate were […]

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NGK Discovers 90% Efficient Gallium Nitride LED Source

Ovidiu Sandru — Mon, 07 May 2012 15:07:39 +0000

A new gallium nitride (GaN) semiconductor developed by NGK Insulators will hugely increase the luminous efficiency of LEDs from 30-40% to about 90%, reports TechOn. The transparent wafer created by NGK has a very low defect density and has been made by using a proprietary liquid phase growth method for a single-crystal growth process. (if […]

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Power-Saving LED Light Bulbs Can Now Transmit Data at 800 Mbps

Ovidiu Sandru — Tue, 02 Aug 2011 08:10:35 +0000

While some people in the Philippines are glad to have sunlight in their homes during the day, scientists from the Heinrich Hertz Institute in Germany have managed to transmit data at 800 Mbps over LED light bulbs, giving them a second reason to exist, besides saving power and carbon dioxide.

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NREL Researchers Using Solar Cell Technology for More Efficient White LEDs

Ovidiu Sandru — Tue, 13 Apr 2010 19:35:51 +0000

Researchers from the National Renewable Energy Laboratory (NREL) have demonstrated they can produce white light by first making a yellow-green LED, and then combining it with other colored LEDs.

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