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CS103 Fiches technique(PDF) 2 Page - Lumileds Lighting Company

No de pièce CS103
Description  Milestone in Energy Efficiency
Download  3 Pages
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Fabricant  LUMILEDS [Lumileds Lighting Company]
Site Internet  http://www.luxeon.com
Logo LUMILEDS - Lumileds Lighting Company

CS103 Fiches technique(HTML) 2 Page - Lumileds Lighting Company

  CS103 Datasheet HTML 1Page - Lumileds Lighting Company CS103 Datasheet HTML 2Page - Lumileds Lighting Company CS103 Datasheet HTML 3Page - Lumileds Lighting Company  
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CS103 Milestone in Energy Efficiency Case Study 20150330 ©2015 Lumileds Holding B.V. All rights reserved.
2
In partnering with Lumileds, LITEK was able to deliver LED
lighting that was 80% more efficient, yet maintained the light
quality (lumen output and color temperature) of the previous
mercury discharge lamp technology. Other reasons for the
partnership include Lumileds strong reputation and their
ability to co-deliver a reliable product with strong technical
support.
Throughout Venice, a total of 7,000 luminaries were retrofitted
with LED lighting solutions. In addition to realizing an energy
savings of 81.4% and the accompanying reduction in CO
2
emissions, the lumen maintenance lifetime of the LED
fixtures is expected to be 50,000 hours or 5x longer than the
mercury discharge lamp technology. On average, the lights are
illuminated for 11 hours per day or 4,200 hours per year. The
light quality has been precisely replicated, but with greater
reliability and dramatically improved efficiency.
Piazza San Marco
Simply referred to as the piazza, the Piazza San Marco was
designed for people, and indeed has functioned as a social,
political, and religious center of Venice for centuries. This
vast public space in the heart of Venice assumed its present
form during the Renaissance. “In the evenings or at night,
one’s perception of the notable architectural structures in
the piazza, including the Basilica de San Marco, the Torre
dell’Orologio [Clock Tower] and the Palazzo Ducale, is keenly
affected by the lighting,” says Mark van den Berg, Director of
Marketing at Lumileds. For this reason, it became necessary
to maintain the exact light quality that was delivered by
the mercury discharge lamps of the past, when they were
replaced by energy-efficient LED lamps.”
On the piazza, post-top luminaries were fitted with LUXEON
K high-lumen-density arrays due to their high efficiency, ease
of use and low maintenance, in addition to customized optics,
specifically designed by Litek. Though the initial consultation
on the project began as early as 2008, installation was rapid
once it started in January 2013 with all fixtures changed out
by the end of April 2013. In Venice, about 6,000 post-top
luminaries were changed out to warm white (3000K correlated
color temperature, CCT) LEDs with a CRI of 80.
Canal Grande, Accademia
Bridge, Rialto
The banks of the Canal Grande are flanked by 170 buildings
that date back from the 13th to the 18th century. The canal
forms a major corridor through the city, spanning over 3,800
meters and 30–90 meters wide, and is traveled by gondola,
water bus or water taxi. Along the Canal Grande, across the
Accademia Bridge and in the Rialto shopping area, a second
type of luminaire has been used in the past, which also
utilized halogen bulbs. The retrofit LED luminaries incorporate
LUXEON M high-flux-density emitters that have been
optimized for high efficiency and consistent color point.
When the project was completed, over 1,000 luminaries in
these areas had been retrofit with LED emitters. A CCT of
3000K was used with a CRI of 80.
City-wide Results
According to the local utility, the overall lighting replacement
project realized a reduction of 75kW of power annually. The
7,000 light fixtures, which are now LED based, consume 81.4%
less energy than they did previously.


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