12,000 LUXEON Rebel LEDs Illuminate Major Bridge in Harbin, China
Jul 23, 2010 Future Lighting Solutions announced the completion of a bridge lighting project in the Chinese city of Harbin utilizing 1,288 linear floodlights containing 12,000 LUXEON Rebel LEDs. The new lighting spanning the 1565-meter Songhuajiang Bridge over the Songhua River was designed and manufactured by Roled Opto Electronics Shanghai Co., Ltd., with LEDs and solution support supplied by Future Lighting Solutions.
Roled used LUXEON Rebel LEDs in the floodlights because of their proven long-term reliability, including the ability to withstand extreme local temperatures ranging from 28°C to -24°C that have given Harbin the nickname of “The Ice City.” Other key considerations included the ability to run at a drive current of 700 mA, thereby reducing the LED count and associated costs required to generate the necessary light output, and assured LED supply under Future’s inventory management program.
The use of LED illumination in the project reduces energy consumption by as much as 80% and provides a 50,000-hour lifetime that minimizes bulb replacement frequency in the difficult-to-reach bridge girders. Future Lighting Solutions assisted Roled with thermal and optical simulations as well as component recommendations including the National Semiconductor driver used in the system design.
Author: BIO T&T
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