“Tegenlicht” is a light installation by Graffitilights and Bert Verstaen presented at Light Festival Ghent 2018 in Ghent, Belgium.
Graffitilights is an artistic nerd, or a nerdy artist, depending on how you look at it.
Programme information from Lichtfestival Gent. Short excerpt quoted for reference; see the original page for full text, images and credits.