Chair of / Cátedra de /
Lehrstuhl für


Prof. Hubert Klumpner


Chair of Architecture and
Urban Design /  
Institute of Landscape- and
Urban Studies / LUS
Member of Network City and Landscape / NSL
Co-Director of ETH Wohnforum,
Centre for Architecture
Society and Environment / ETH Wohnforum / ETH CASE
Co-Founder and Members
of Institute of Science
Technology and Policy / ISTP
Member of the ETH Sustainability
Steering Committee
Informal Urbanism Regional
Hub of UN-Habitat Universities



Klumpner Chair PhD Researcher Lecture

ABOUT THE DOCTORAL THESIS: A lighting technology, design and policy solution for Bogotá’s informal settlements will be presented that is based on an ethnographic night-time study, laboratory measurements, a luminaire prototype development and computer calculations. Moreover, the transferability of this new lighting approach to informal settlements in other countries will be explored.
ABOUT THE AUTHOR: David M. Kretzer received an MSc degree in Light and Lighting from The Bartlett (University College London) in 2009. Subsequently he worked as a luminaire product manager in Austria, as a lighting designer and lecturer in China, and again as a luminaire product manager in Switzerland until 2017. David began in 2017 a PhD at ETH Zurich (supervised by Prof. Hubert Klumpner), where he investigated public lighting in informal settlements. He defended successfully his doctoral thesis in January 2021.