Valiant bank Bern with dynamic LED light

Location: Bern/Switzerland
Products: DALI PS2

An LED light ceiling spans the counter hall at Valiant bank at Bahnhofplatz in Bern. With its Tunable White function, it enables variable light colours to be generated, ranging from warm and neutral white to cold white.

To gain more office space on the upper floors, the light ceiling in the counter hall at the Valiant branch at Bahnhofplatz in Bern was closed in the 1970s. As part of the refurbishment, this original architectural element has now been revitalised. Instead of daylight, however, the large-format ceiling panels are now backlit by LED technology from Tridonic.

“The idea of the architects was to bring back to life the original situation with the atrium and daylight. So it was obvious to backlight the ceiling with LED technology that offers Tunable White functionality,” explains David Breil, Director at Licht+Raum. His company planned and implemented the light ceiling in the counter hall.

In the 36 ceiling coffers measuring 90 x 90 cm each, Licht+Raum used its square low-profile ZETA luminaires. The luminaires are equipped with LED light engines from the Tridonic QLE PREMIUM Tunable White module family. They have been chosen especially because of their high quality of light. In the counter hall, four LED light engines in square versions (QLE) with a luminous flux of 1,250 lumen each were installed per luminaire. Like all PREMIUM Tunable White modules they enable infinitely adjustable colour temperatures at constant luminous flux, but can also be dimmed between 100 and 10 % without colour shifts.

The LED drivers provide digital interfaces for various lighting control protocols – DALI DT8, DSI, switchDIM and colourSWITCH. In the counter hall at Valiant bank the light is controlled via DALI x/e-touchPANEL 02. This  lighting control system has a pre-installed Tunable White program that only needs to be linked to the desired schedule.

Project Data
Client: Valiant Bank AG, Bern
Architecture: Rykart Architekten AG, Bern
Lighting planning/luminaire development: Licht+Raum AG, Ittigen, Switzerland
Used equipment: DALI PS2
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