Belgian non-profitThe beauty of the real night.
Light pollution threatens biodiversity, public health and our right to an unspoiled night sky. Together with citizens, governments and companies we restore darkness across Belgium.
Active projects
Our campaigns
From citizen science to policy advice — we tackle light pollution at every level.
Night of Darkness
Our flagship annual event where municipalities and communities switch off their lights for a truly dark night.
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Saving Private Orion
Count the stars in the Orion constellation from your own backyard and help map the night sky.
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Darkness Needs Map
A scientific instrument that shows where darkness must be protected as a priority.
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Expertise for every sector
Light pollution affects everyone. We offer targeted support per audience.
Tips for lighting around your home and local actions.
GovernmentsPolicy advice, lighting plans and consulting.
ExpertsTechnical standards, light-measurement data and publications.
BusinessesOptimisation of industrial and office lighting.
EducationEducational materials for schools and universities.