COESA is the first quality-control luminaire from Zumtobel. Sharper than the human eye, this task-specific luminaire perfectly complements general lighting and utilises optimal area lighting to find any fault and irregularity in installations where the highest quality is of the highest importance. By illuminating the task area from an appropriate distance, COESA delivers planar, uniform and shadow-free light onto the object that needs to be inspected. This kind of area lighting is particularly helpful when it comes to locating bumps, dents or imperfections on matt, shiny and transparent surfaces.