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A successful update: ERCO foyer now completely in LED lighting

A successful update: ERCO foyer now completely in LED lighting  [PKM_Objekt]

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Efficient LED technology cuts energy consumption by 75%

Lüdenscheid, May 2011 - Proven concept, around 75% less energy: Using its own innovative LED lighting tools, ERCO - the Light Factory, has now updated the entrance foyer of its Technical Centre at the Lüdenscheid headquarters to feature the latest, state of the art systems. Energetically optimised, the lighting update is expected to pay off in as little as five years through increased efficiency. The transparent foyer has served as the visiting card of the company since 1989. Harmonised with the building's architecture and with a significant component of vertical illuminance, its previous lighting concept still met the requirements of perception-oriented lighting design. The new implementation of this proven concept demonstrates the enormous potential of LED technology, which has now revolutionised lighting technology. It communicates to both staff and visitors the latest standard required to experience, appreciate and explain ERCO's lighting philosophy.

Prestigious rooms with glass façades
Through uniform wallwashing of the walls, some over 12m high, the pleasant impression of brightness achieved through vertical illuminance alone is such that conventional ambient lighting of the floor area is largely unnecessary. Floor-to-ceiling glass façades allow intensive utilisation of daylight - the brightness contrasts and reflexes softened by wallwashing. Lighting accents are produced by ERCO's Logotec LED spotlights with "narrow spot" characteristic; installed on track, these are found in such places as the communication area of the foyer lighting up the chrysanthemum decorations on the tables. Intelligent, modern lighting control systems - here the Light System DALI from ERCO - are applied both for scenographic purposes and to save energy. Flexibly used to call up light scenes, the systems can also include motion sensors and daylight-dependent control functions. Efficient visual comfort is paramount in every aspect.

Efficient lighting technology
The original lighting system installed in 1989 worked primarily with low-voltage halogen lamps and PAR lamps. Back then, these were the lamps of choice for lighting accents in rooms measuring over 12m in height and ensuring uniform wall illumination. In 2011, these tasks are now handled by far more efficient high-power LEDs with Spherolit lenses in narrow spot version for accent lighting and wallwash for highly uniform wallwashing. The warm white light of today's LEDs is comparable to halogen lamps in terms of quality. Changing to LED technology, the connected load of the updated system in ERCO's foyer has reduced the original power consumption by 75%, down to 6.48w/m². Equally as convincing is a comparison of the life of both variations: the average life of halogen lamps ranges between 3,000 and 5,000 hours, depending on their type; LEDs have a life span of 50,000 hours. The investment costs must be seen against significant savings in energy and maintenance.

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Relevant image material

Image 1 / Download HiRes
01 and 02 Reception
Vertical illuminance: Previously with ERCO's wallwashers PAR 250W; today with ERCO's Quintessence lens wallwashers LED 42W.
The lighting on the wall produces a subjectively pleasant impression of brightness. Additional ambient lighting is unnecessary.


Image 2 / Download HiRes
01 and 02 Reception
Vertical illuminance: Previously with ERCO's wallwashers PAR 250W; today with ERCO's Quintessence lens wallwashers LED 42W.
The lighting on the wall produces a subjectively pleasant impression of brightness. Additional ambient lighting is unnecessary.

Image 3 / Download HiRes
03 ERCO Logotec LED spotlights
From the wide spectrum of light distributions available in the Logotec range of LED spotlights, the lighting designers opted for the Spherolit characteristic narrow spot to bridge the double height between floors.
Image 4 / Download HiRes
04 Bistro tables
ERCO Logotec LED spotlights with Spherolit lens, narrow spot, accentuate each individual bistro table from a height of over 12m, with an output of only 4.6W. They replace spotlights with 100W low-voltage halogen lamps.
Image 5 / Download HiRes
05 Bridge
ERCO's surface-mounted wallwashers with 28W LEDs produce absolutely uniform vertical illuminance thanks to Spherolit lenses in "wallwash" version.
Image 6 / Download HiRes
06 Communication area
In the communication area ERCO's Cantax spotlights spot with 14W LEDs place precise lighting accents on the yellow flowers. The Light System DALI can be used to call up light scenes appropriate for the occasion and including a dynamic lighting component as a "play of brilliants" produced by Emanon Goborotators.
Image 7 / Download HiRes
07 Conference table
Surface-mounted wallwashers with 28W LEDs illuminate the partition wall to the separate conference rooms to balance out the copious amount of daylight spilling in through the glass façade.
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