With its TALEXXengine QLE LED modules, Tridonic offers luminaire developers and manufacturers efficient light sources based firmly on the system approach. The individual modules can be interconnected via plug connectors. Up to six can be powered and controlled from a common driver. The lighting system for the new LEE building at the ETH University in Zürich is a prime example of the flexibility of design that these modules offer. With a great volume of the research work, ETH Zurich planned for the development of the university and the first stage of this plan saw the large new building called as LEE near to the main ETH building. "The ETH did not want a fashionable building but one that was functional", explained Drazenka Dragila-Salis, Director of the Buildings Infrastructure Department at ETH. In addition to innovative building systems and media technology, sustainability plays a central role.
LED luminaire used for seminars and conference rooms...
Sustainable and functional
The LEE has been constructed and certified in accordance with the Minergie ECO standard. This means that it not only meets the high requirements of energy-efficient operation but also complies with strict regulations regarding ecology and health. With its outstanding energy balance and high quality of light, the installed LED lighting system is the ideal complement to this overall building concept.
Modular LED lighting components
Architect Fawad Kazi and the lighting designers worked closely together on the concept for artificial lighting in the LEE building. Luminaire type in different sizes is used throughout all the functional areas of the building. Seminar rooms, auditorium, offices, corridors and walkways are all illuminated by this LED component.
The LEE building at the ETH Zürich...
The cuboid Minergie luminaire was developed by Kaspar Moos AG. The explicit specifications from the architect and the lighting designers called for minimum height, high efficiency, absolute freedom from glare, and no indication of the LED light points on the luminaire cover. "When it came to selecting the light sources we opted for the TALEXXengine QLE LED modules from Tridonic and the matching drivers", said Roger Müller, Sales Director at Kaspar Moos AG. "With their mounting height of only 5.5 millimetres, the square LED modules enable the luminaire body made from microprismatic PMMA to have a particularly low profile. This low-profile design of the LED luminaires was also helped by the fact that the QLE is self-cooling. This means that there is no need for a separate heat sink to ensure an optimum temperature range for operating the LEDs."
Another benefit of the LED modules in this project was their system concept. On the one hand, Tridonic offers the appropriate drivers and plug-in connectors for its LED engines, and on the other the QLE units with their 27 x 27 centimeter edge lengths can be easily joined together to create a homogeneous light emitting surface. For the ten different luminaire sizes in the LEE building at ETH Zürich the boards were used either singly or in combinations of two, three, four, five, six, eight, nine or ten. They are supplied with power from one or at most two LED Drivers of type LCAI .../0350 I010 one for all integrated in the luminaires. In addition to the high energy efficiency of the LED modules at 168 lumens per watt in the present version, this demand-led approach offers further energy savings during actual operation.
Project Details
Architects: Fawad Kazi Architekt GmbH
Lighting concept: Reflexion AG
Luminaires: Kaspar Moos AG
Architects: Fawad Kazi Architekt GmbH
Lighting concept: Reflexion AG
Luminaires: Kaspar Moos AG
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