Using its own innovative LED lighting tools, ERCO - the Light Factory, has updated the entrance foyer of its Technical Centre at the Lüdenscheid headquarters to feature the latest 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 allows both staff and visitors to experience, appreciate and explain ERCO's lighting philosophy.

The lighting on the wall produces a subjectively pleasant impression of brightness. Additional ambient lighting is unnecessary.
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 use 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.

Logotec LED spotlights with Spherolit lens, narrow spot, accentuate each table from a height of over 12m, with an output of only 4.6W.
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.
Image source: www.erco.com