All SILL products must comply with the same, consistently high quality standards in every respect - including their design. All components are purchased from recognized manufacturers. Reliable functionality and long-lasting luminaires are a matter of thermal management. That is why we attach great importance to adhering to the specified maximum temperatures of the lamps, control units and components - as well as all other factors that influence the performance of a luminaire. In this respect, we have of course our own photometric and thermal test laboratory, a laboratory for the degree of protection testing, maintain a quality management and check our products according to the ISO standards.