Repro-light: Modularity, Sustainability & Personalization for Lighting Industry
The goal of the project Repro-light (“Re-usable and Re-configurable parts for sustainable LED-based lighting systems”) is to initiate a transformation in the European lighting industry towards a circular economy. Through the development of an intelligent LED-based luminaire with modular, stackable architecture the project seeks to change the industry’s view of the LED luminaire into a customised, sustainable product with high functional value. The luminaire should easily be re-configured by all stakeholders involved and the product can in that way be updated to avoid obsolescence. The Repro-light luminaire is conceived to influence the customer’s well-being and health positively. It can also be adapted individually to the customer’s needs, e.g. the end-user’s age or chronotype.
Repro-light does not only seek to satisfy the end-users but also wants to develop the luminaire in a way that the costs and time of manufacturing are reduced. Since the market shifts more and more towards increased individualization also luminaire production must be optimized to fulfil those requirements. The Repro-light luminaire will be developed in a modular way where the modules can be programmed to their intended purpose only – allowing for a seamless integration into Industry 4.0. In that way equal parts can be manufactured in high quantities as first and differentiation will only take place in the last stages of production by software, allowing more flexibility. In that way the same manufacturing process can take part for luminaires intended for different applications and configurations. Several modules of the luminaire should be made exchangeable so they can be repurposed and re-used.
To determine the architecture of such a luminaire and the requirements from the different stakeholders (e.g. end-users, customers, facility managers) a user-centred design approach is essential. Every interface defined for exchangeability comes with increased development efforts and costs so it is important to research beforehand what makes sense from a technological point of view and the user’s perspective. To design the luminaire according to the stakeholder’s wishes we have undertaken several steps in the Repro-light project. We have conducted technology acceptance questionnaires for the different stakeholders, among them an end-user survey with more than 1000 participants from several European countries. Additionally, we have conducted focus groups with different stakeholders in Austria, Germany and Spain to receive also qualitative insights into the needs and challenges of these groups.
In this presentation the results from the determination of the stakeholder needs and their implications they have had on the development of the luminaire will be shown. Furthermore, the challenges and the chances of a modular luminaire architecture will be discussed.