We have ordered this system for our kitchen and are very satisfied. The installation is not very easy and actually requires 2 persons, but can be done. We were skeptical at first because of the brightness but in retrospect satisfied (20 m² kitchen). The round LED circuits are really a highlight and evaluate this system. A hum or other noise we could not perceive before. Similarly, so far none of the spots or broken bulbs (lamp has been in operation for about 2 months).