As of 1 April 2026, the PSJD database will become an archive and will no longer accept new data. Current publications from Polish scientific journals are available through the Library of Science: https://bibliotekanauki.pl
The paper is dedicated to present and compare two methods of controlling supplementary lighting system in office with limited glazing area. The lighting energy demand was evaluated taking into account positioning of light sensors and room occupancy. Comparison of daylight conditions in the rooms with different orientations was carried out. The results shows the effect of occupancy scenario on lighting control strategy.