In the fall of 2008, the Thringer SchmcketunnEL tunnel on the A71 will be the first in Germany and the longest tunnel in Europe with LED lighting. At present, LED lighting has been tried in one of the tunnels. All lighting fixtures use OSRAM's Golden DRAGON LED products, and Dellux Technologies has also developed tunnel-specific lighting fixtures. Dellux's lighting fixtures and OSRAM's LED lighting sources are the perfect combination to provide lighting that lasts more than 130,000 hours (15 years) with virtually no maintenance. With Dellux's patented LED Degradation Compensation Technology, the installed lighting fixtures consume 30% less power than conventional 70W high-intensity discharge lamps.
Dellux's technology, combined with OSRAM's Golden DRAGON LED products, guarantees a minimum of 15 years of illumination life without a reduction in brightness levels. Michael Fiebig, Director of Marketing for Solid State Lighting Division of OSRAM Opto Semiconductors, said: This is a big advantage for lighting products, especially for tunnel lighting, because the maintenance and replacement of lighting fixtures is not only costly, but also exercises in tunnels. The vehicle is extremely inconvenient and at the same time jeopardizes the safety of the driver. The light source and lighting fixtures used in this project exceed the stringent safety standards of tunnel lighting, have good heat resistance and durability, and are not susceptible to pollution. Another big advantage is that the long-term test results show that the OSRAM LED lumens drop curve is stable and the color position shift rarely occurs during use. Osram's outstanding lighting source, combined with Dellux's patented lighting efficiency reduction compensation technology, allows the lighting fixtures to last up to 130,000 hours and maintain the necessary illumination.
Illuminate the monochromatic light of the tunnel to achieve high brightness
The brightness of the semiconductor light source can be adjusted, so that the brightness of the light source can be adjusted to provide suitable illumination in the tunnel, day or night. During the day, the required brightness in the tunnel is 4.65 cd/2; at night, only 0.8 cd/m2 is required. During the day, the average power consumption of the lighting fixtures in the tunnel is 70W, while at night, only an average of 12W of power consumption is required to provide sufficient brightness. Overall, Dellux lighting fixtures with OSRAM LED sources save an average of 10,000 kWh per year compared to lighting systems using high-intensity discharge lamps, which is equivalent to a reduction of more than 30% in energy consumption.
Intelligent lighting concept extends lighting life
As an expert in tunnel lighting, Dellux has introduced intelligent lighting concepts for tunnel lighting applications (such as the Schmcketunnel tunnel), taking advantage of the Golden DRAGON LED products, and with customized electronic circuits and software, greatly extending the use of lighting systems. life. Wolfgang Medenwald, vice president of European business development at Dellux Technologies, said: "We have installed backup LEDs in each fixture to compensate for the loss of brightness due to contamination and reduced efficiency. At the same time, we set the operating current of all LEDs to 85% of its rated current for higher efficiency and longest durability. Despite the extremely harsh conditions in the tunnel, our patented efficiency reduction compensation technology guarantees the required illumination for at least 15 years.
Dellux lighting fixtures use Osram LED lights, which consume 30% less electricity than high-intensity discharge lamps, can achieve the required road lighting brightness, and have a service life of more than 130,000 hours.
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