Case study: Community

Lighting design by comparison

Can qualitative lighting be more economical than quantitative lighting?

The architecture of an authority, university or concert hall characterises the identity of the specific institute. A variety of functions requires a nuanced lighting concept that can be economically implemented and operated. Qualitative lighting design approaches make use of the principles of perception psychology to efficiently divide the room into zones. Lighting solutions offering high visual comfort via good glare protection allow the eye to adapt, and therefore fulfil their tasks with lower levels of illuminance.

Qualitative lighting design for Community

Rapid orientation and a bright spatial impression: Perception-oriented lighting divides the room into zones of light. Recessed luminaires with various light distributions enable specific room geometries and user profiles to be responded to.

Conventional lighting design for Community

Monotonous lighting that does not take the spatial context into account ignores the perception hierarchies offered by the architecture and makes orientation more difficult for users. A focus on horizontal lighting requires more energy to generate a comparable impression of brightness.

Luminaire arrangement with qualitative lighting design

The spatial impression and impression of brightness is characterised by the end wall, illuminated with lens wallwashers. Downlights for general lighting are only arranged above the main circulation routes. Recessed spotlights accentuate room zones such as desks and lifts as well as something eye catching on the wall.

Luminaire arrangement with conventional lighting design

The quantitative lighting design approach leads to a grid of downlights for general lighting of 100lx in the circulation areas. The specification of 300lx on the desks is achieved with supplementary recessed spotlights installed above.


Qualitative lighting design structures high rooms into functional zones to facilitate orientation. Energy-efficient ERCO LED luminaires, thanks to their specific light distributions, enable wide luminaire spacing and therefore economic lighting.

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