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132 TECHNOLOGY / LED CASE STUDY THE ROAD AHEAD More than a million Cree LEDs illuminate China’s first major highway LED lighting project.


Helping to further drive the LED lighting revolution, China recently completed its largest highway lighting upgrade with more than 10,000 street lights featuring more than a million Cree XLamp XP-G and XP-E High Efficiency White (HEW) LEDs. The Shenzhen highway project includes nearly 75 miles of roadways, with LED fixtures installed along one tunnel and four highways.


The LED street lighting installation was a key component of the 2011 Summer Universidade, an international multi-sport event, organised for university athletes by the International University Sports Federation (FISU), hosted by Shenzhen in August.


In compliance with China’s stringent roadway lighting requirements for light efficacy, brightness, luminance, heat dissipation and service lifespan, Kingsun Optoelectronic Co. Ltd., a leading LED lighting company in China, selected Cree XLamp LEDs to illuminate Jihe highway number G15, Nanguang highway number G9411, Longda highway number S318, Yanba


highway and the Dameisha Tunnel. Kingsun installed 270 watt and 300 watt RL2R Apollo LED luminaires alongside the highways, including three traffic lanes and an emergency lane in each direction. The installation was designed to average more than 20lux, the national standard for main roads illumination. Kingsun anticipates a 60 percent reduction in energy consumption compared to the replaced, high pressure sodium fixtures. According to the Energy Management Contract (EMC) business model implemented


by Kingsun, the energy savings associated with the Shenzhen project can be put toward the installation’s upfront costs for an estimated return on investment of four years. “Cree’s XLamp LEDs proved to be the perfect solution for our modular lighting system, providing the illumination performance required by our light distribution scheme for this major roadway installation,” said Mr. Li Xuliang, president of Kingsun Optoelectronic Co. Ltd. www.cree.com


A FINE VINTAGE Future Lighting Solutions renews Leipzig’s historic lamps with Luxeon Rebel LED technology.


Braun Lighting Solutions of Berlin and solid-state lighting experts Future Lighting Solutions have equipped the historic Schinkel street lights in the city of Leipzig with modern LED technology, helping the municipal authorities to make large savings in power consumption and CO2 emissions. The Schinkel lamps have been a fixture in the city since the industrial revolution in the mid-19th century, and the gas light with its warm atmosphere was characteristic of the city at night. By converting the lamps to LED technology, the city retains the appeal of the historic incandescent lamp while benefiting from energy efficiency, durability and low maintenance costs. The LED lamps consume only 22W, compared with the 85W power consumption of the lamps they replace. The switch to energy-efficient LEDs is expected to reduce the street lights’ CO2 emissions by 60.8


tonnes per year. A difficult part of the design project was to implement LED technology in such a way that the vintage appearance of the gas light was maintained. Future Lighting Solutions helped in the design phase by providing a simulation of the first prototype, implemented at its Lighting Resource Center in Montreal, Canada. Future Lighting Solutions also helped with the selection of electronic lighting components and connectors.


As the exclusive distributor of Luxeon Rebel LEDs manufactured by Philips Lumileds, Future Lighting Solutions was responsible for ensuring consistency of light output at a colour temperature of 2700K across all the LEDs supplied in the production shipments to Braun Lighting Solutions. www.FutureLightingSolutions.com


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