Replacing old recessed luminaires. Lots of energy can now be saved with recessed luminaires too! Because the Energy Saving recessed luminaires of the Quality Line are not only notable due to their stylish design and high-quality materials, but also offer you the option to replace old recessed luminaires with large diameters with energy-efficient recessed luminaires. And the best thing about it: The large diameter of the luminaires allows the installation of almost all energy-saving lamps.