The free-standing luminaire served as a pilot project to demonstrate the Circular Design Rules. Its modular design makes it easy to assemble, reconfigure and dismantle. The features we developed included two sizes of lamp head with all the technical components contained within. This allows for flexible docking onto the stand and enables a wide variety of constellations to adapt to today’s rapidly changing office uses: a single luminaire, a doubleheaded luminaire or a combination of four light sources. The wireless control unit is also housed in the lamp head and, like the swarm sensor, can be replaced without dismantling the entire luminaire. The cable, which must withstand heavy wear on the floor, is connected to the luminaire via an IEC power plug in the stand, also making it easier to replace. Artelea is the first Zumtobel luminaire to be cradle-to-cradle certified.
The Allen key integrated into the cover of the T-piece can be used to adjust the inclination of the luminaire head and the height of the feet in the base.
Diagram of the modular system of the free-standing luminaire. A T-piece is attached to the stand, which carries the lamp heads – one or two small versions or the double-size variant. Artelea can also be converted into a double-headed luminaire at any time. Appropriate extension elements are available to make the base larger.
Circular Design Rules
The most impactful project we have developed for Zumtobel is definitely the group’s in-house Circular Design Rules, rather than any specific luminaire model. When drafting the original version, which was just thirty-four pages long, we worked with EPEA Switzerland, an institution that has played a pioneering role in establishing and applying cradle-to-cradle principles. Our fifteen years of experience in developing luminaires helped us to couch the rules in practical terms. The evaluation tool’s scoring system with its four performance levels can be used to evaluate the extent to which a luminaire design is compatible with circular principles in the three main areas of sourcing, design and systems. The Vivo II retail spotlight and the Artelea free-standing luminaire served as pilot projects. The Circular Design Rules were further fine-tuned within Zumtobel and introduced in 2021 as an innovation tool for all the group’s new product developments.
Circular Economy – Product Development
With the Circular Design Rules the Zumtobel Group has established its own strict internal rules for circular design. The Circular Design Rules (CDR) were initiated in collaboration with the EPEA Switzerland consultancy institute and the EOOS design studio under the lead management of Harald Gruendl, and then further developed within the company. The CDR are specially tailored to the design of lumi naries. The Vivo II ecological luminaire series served as a pilot project to establish and fine-tune the formulation of this self-imposed set of rules.
Since May 2021, the Circular Design Rules have been applied to all new product developments by Zumtobel. The rules are intelligently supplemented and optimized on an ongoing basis in line with practical experience and changes in the legal environment. Three goals form the basis of the development process for new lighting solutions: Circular Sourcing: this means that Zumtobel uses the highest possible proportion of recycled materials, while ensuring that products meet Material Health standards. As of 2022, seventy percent of the materials used in Zumtobel luminaries meet these requirements. Circular Design: a circular product design ensures that Zumtobel products are built in such a way that they can be easily disassembled, maintained or upgraded for a further service life. Circular Systems: circular systems create an infrastructure that enables Zumtobel luminaries to provide a high level of benefit through and beyond their initial service life – through maintenance and upgrading, reuse and remanufacturing or high-quality recycling.
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