QLS – QUALIS, a modern family of linear fixtures manufactured in Poland. LED lighting achieves light efficiency unattainable for other products - up to 150lm/W. This factor allows not only to save energy but also to take care of our natural environment. There is only slight heat emission, thanks to which the diodes have a service life of 50,000 hours. LED lighting is impressive not only for its appearance, but also for its many environmentally friendly features.