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We at XCHANGE believe that the purpose of design is to add value. Inline with the goals from GOOD LIGHT GROUP we aim to promote in our latest product M HAUS better light for happy people. To show how it works and get real end user feedback we teamed up with VIENNA HOUSE Martinspark, Austria’s first Design hotel at Dornbirn and installed an M HAUS in the hotel lobby offering a space to work and relax using the best light available. The light solutions at M HAUS were developed together with the lighting innovators from BARTENBACH using the lighting control from CASAMBI. The tool for databased analysis to measure the user experience is provided by IMPRODO. Last but not least CHAIRHOLDER, a leading company for holistic working environments, supplied the AERON chair used in the M HAUS.  

Win an Aeron chair!
The Aeron chair, a design classic from Herman Miller, will be raffled among the participants of the Good Light Experience at MARTINSPARK.

Anker GLE Video
Anker Bartenbach


We work holistically.  Man is a creature that depends on light – because without light there is no life. In current times, 90% of life is spent inside and therefore lighting design has such a major influence on our quality of life. Appropriate use of light creates safety and wellbeing and enhances our ability to perform. The phenomenon of light is multi-faceted, which is why we work in an interdisciplinary environment. Architects, physicists, psychologists and designers all create individual lighting solutions. As part of the international scientific community network, Bartenbach is always at the cutting edge of research. Continuous growth of knowledge is our capital.



Lighting control for the modern world
Casambi is the clear leader in modern wireless lighting control solutions based on Bluetooth Low Energy. Key aspects of the Casambi solution are great user experience, high performance and scalability from basic individual fixture controls to industrial-scale solutions with cloud-based remote control, monitoring and data logging.

The Casambi solution is based on Bluetooth Low Energy, the state-of-the-art wireless technology and the only low power wireless technology in all modern smartphones, tablets and even smart watches, making it the only mainstream and future proof low power radio technology in the world.


Anker Chairholder


Chairholder Object is the platform for holistic office and contract furnishings. We count small and medium-sized companies as our customers as well as global corporations, and we always offer the best possible solution. Regardless of whether it is an individual interior design or the complex stocking of a furniture standard for large customers with a technically sophisticated ordering system - we are at home in this range!

Anker Good Light Group


Rethinking lighting - Good Light indoors We are the Good Light Group, a non-profit organization operating globally. The main objective of the Good Light Group is to stimulate the use of Good Light indoors. This goal will be reached by communicating the benefits of Good Light to the people, by stimulating collaborations and by promoting knowledge developments on the topic of Good Light.

Our mission for 2025 is that 1,000,000 people worldwide know about the beneficial effects of Good Light on the body and brain. We also want to accomplish that 100,000 people worldwide live, work and learn in buildings with Good Light.




The rapid change in our working environment is accompanied by a permanent improvement process. Processes are simplified & partially automated. Applying & improving products has a lasting impact on the working environment & all related decisions. IMPRODO stands for the philosophy of lifelong learning together with your employees & your organization. A joint partnership regularly results in new approaches, which we solve together with you and our network.
With our barometer we create the first step in the continuous improvement process to actively involve people in the digital transformation process, to gain new insights & to make better decisions.




Vienna House Martinspark Austria's first architecture hotel, the Vienna House Martinspark, is situated in the centre of Dornbirn in Vorarlberg province. The unusual architecture, the deliberate use of high-quality materials and the contemporary art lend the hotel its own particular style, with a talent for Austria‘s renowned hospitality add to the charm.

Anker Vienna House


It is all about Endless Exploration Vienna House is exciting experiences, superior service, great design, good food, high-speed technology, fun in business and a cool atmosphere. Always easy-going and on the pulse of the times. Vienna House is more than just a place to spend the night. With hotels in Germany, Poland, Czech Republic, Russia, Romania, Slovakia, Switzerland and Austria or soon in Asia.



A design classic When designers Bill Stumpf and Don Chadwick set out to create a chair that was health-positive, cross-performing, inclusively sized and environmentally sensitive, they arrived at a design unlike the world had ever seen. Aeron demonstrated a pioneering step in ergonomics and material innovation and provided a comfortable solution without the standard use of foam, fabric or leather. It changed people’s perception of what an office chair could be, and in doing so it soon found a place in popular culture.

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