Everlight to illuminate two downtown streets in Prague

Everlight Electronics Co. Ltd. announced that the company’s LED-based SL-Dolphin street light will illuminate two streets in the Czech capital Prague within the scope of a pilot project that tests various street lights based on LED technology. The test series, carried out by Eltodo, the Czech lighting designer and nationwide electric installation service company, in cooperation with the city administration of Prague, aims at gathering experience with and accurate information on seven LED street lights of six different suppliers. The pilot project is initially running for four months.

All seven street lights have been installed in topographically different environments and hence are fulfilling different tasks ranging from lighting park walkways and bicycle paths to bright shopping streets or rather dark residential avenues. The selected streets and tracks are all located close to the city centre in frequently visited tourist areas. The street lights will remain in operation for the foreseeable future.

The installation phase
Everlight (via distributor MSC-Vertriebs-CZ s.r.o.) is the only project participant to which two streets have been assigned. Both are located in residential areas characterised by only few additional light sources such as a bright shop window light. Another reason why Everlight streetlights can be called ‘high performance’ is because the required pole heights amount to ten metres – the highest of all project installations. To play in this league is only possible with very bright lights and the result of previous analysis was that Everlight’s 120 W and 90 W SL-Dolphin Phoenix street lights proved best in series for these conditions. Another demanding condition was that the five street light poles were installed on only one side of the road with 35 to 40 metres between each pole, which was the longest pole distance throughout the pilot project.

In spite of these obstacles, the SL-Dolphin achieved outstanding lighting values in the first evaluation round that even exceeded the lighting levels of previously installed traditional street lights. In contrast to other solutions, the SL-Dolphin not only provided uniform illumination across the entire street width, but also illuminated the opposite sidewalk according to current standards.

The practical phase
At the opening ceremony on November 11, 2009, the city's residents were invited to join representatives of local political bodies, business industries and press members to enjoy music performances and a raffle. The residents also had an opportunity to voice their first impressions of the street lights in distributed evaluation sheets. Posters informed the audience on the actual measured initial values of the respective LED street lights and compared them to those of the formerly installed conventional lights.

In the ongoing four-month field trial, the people of Prague are encouraged to provide feedback on their experiences with the new technology, particularly with how they perceive the difference between LED lighting and traditional lighting. For example, amongst other things, the traditional colour temperature of 2,000 Kelvin rises to 4,000-6,000 Kelvin, which means a change from a highly yellowish light to a neutral white.

Disclaimers of Warranties
1. The website does not warrant the following:
1.1 The services from the website meets your requirement;
1.2 The accuracy, completeness, or timeliness of the service;
1.3 The accuracy, reliability of conclusions drawn from using the service;
1.4 The accuracy, completeness, or timeliness, or security of any information that you download from the website
2. The services provided by the website is intended for your reference only. The website shall be not be responsible for investment decisions, damages, or other losses resulting from use of the website or the information contained therein<
Proprietary Rights
You may not reproduce, modify, create derivative works from, display, perform, publish, distribute, disseminate, broadcast or circulate to any third party, any materials contained on the services without the express prior written consent of the website or its legal owner.

Nichia’s Tunable 757 receives rave reviews from industry leaders, including the coveted LpS Best Sustainability Technology Award. Nichia, the leader in and inventor of the high-brightness LED, announced its game-changing single LES, tuna... READ MORE

Innovative tunable white, mid-power LED enables luminaire manufacturers to improve colour tuning, shrink optics and fixture profiles, while enabling new design options. Nichia, the leader in and inventor of the high-brightness LED, announces i... READ MORE