Dynamic lighting design as a communications concept at G Data

G Data Software from Bochum has designed antivirus software for over 30 years. The lighting in the reception area, canteen and events space is based on an intelligent network structure, reflecting the firm’s key business.


G Data’s head offices are on an former industrial site; the central entrance into the main building houses the reception with a counter. The firm’s core business is the development of IT security systems; this was the starting point for the design approach in order to come up with a functional and representative lighting plan.


At the time the contract to create a lighting concept was awarded, the ceilings were entirely clad with sound proofing. They were replaced by a new layer, which appears as an open grid linked by individual cells. An abstract World Wide Web depicted by using complex general lighting and energising lighting schemes.


The white network structure in the reception area describes a striking architecture constructed with custom-designed moulded parts made from plasterboard . They supply two fundamental lighting components: indirect and direct light. The rounded honeycomb structures serve as cornice lighting; they provide the indirect light with integral rows of RGB LEDs and the colour temperature can be adjusted. A 4-cm-wide light channel runs along the linear axes, through which direct light with two beam angles is generated. Highly efficient tunable white LED lights are used here, the colour temperature of which can be regulated. Star-like lines of light also radiate across the floor towards the counter.


The three-dimensional ceiling sculpture leads from the reception area to the canteen in a modified form as stepped wood facets. The structure appears to float light as a feather and creates a homelike atmosphere; slender pendant lights are used for selective accent lighting and deliberately break up the branching structure.


The user-friendly controls provide for four different lighting schemes: a natural light setting, which is sent information via an external sensor and transmits it into the inside; two party settings with changing colours, which use saturated colours in warm or cooler shades, as well as task lighting for cleaning and maintenance work. The lighting system operates biodynamically, by adjusting to the natural light and supporting people’s natural day/night rhythm in line with aspects of human-centric lighting (HCL).


Cubic exterior lights are used in the events hall. They emphasise the sober industrial architecture, can be dimmed separately and the colour temperature can be varied. General lighting for training courses and lectures as well as changing coloured lighting moods breathe fresh life into the room as needed.

Photos: Tom Gundelwein


A lighting concept for the new offices of ADAC Mittelrhein in Koblenz.

The design is planned for two floors of offices and the ADAC shop. The brief was to continue the organic design language from the interior and create lighting that was suitable for computer workstations and offered staff maximum comfort and yet was energy-efficient.

Good at cornering

The offices in the ADAC building were designed for one to five people and separated from the corridors by glazing, The corridors stand apart clearly with their curved design: areas accented with colours are intended as places for communication. White light makes the sunny yellow meeting points look bright and cheerful.

Easy navigation

General lighting in the corridors is provided by downlights with a neutral white colour temperature of 4000 K; their lenses resemble the Xenon headlights of cars. In order to link typical ADAC subjects, such as driving or map reading, with the architecture, the ceiling lights are connected by lines. This results in an overall impression that reminds one of street maps and traffic lights. The lines follow the architecture and lead along the corridors like waymarks.

Forward march for technology

There was limited room for scope in the ceiling design as a result of the overhead heating and cooling in the offices. Special pendant lights based on LEDs create a separate level, they provide functional light and comply with requirements with regard to heat dissipation and power consumption. The pendant lights project direct and indirect light, one or two are installed in each room. Prisms ensure that, with a length of up to 210 cm, light is spread evenly. Lights are turned on manually. They are switched off automatically using a movement detector. Staff can also choose the individual level of illuminance as they wish and are not restricted to the standard figure of 500 lux. In addition, a sensor regulates the light adjustment for natural light.

Lane changing in colour

Each pendant light is fitted with an RGB unit that is regulated by central controls and its own bus system so that the building exterior is illuminated after dark. Blue light shines indirectly onto the white surfaces of the ceiling, with the result that ADAC's offices and the leased floor appear in a uniform midnight blue. In addition, the shop, which by day is illuminated with a pendant track system on the dynamic coloured ceiling, is integrated in this installation.

Fotos: Tom Gundelwein

Project participants:

Förster + Förster Architekten, Bad Kreuznach | Bals + Wirth Innenarchitekten, Wiesbaden | Münch und Münch GmbH & Co.KG, München