This is the second time that this transformer comes in our household for use. After refurbishing the ceiling lighting in the hallway was now off the bathroom. The small external dimensions this transformer can be accommodated easily in the false ceiling by small cutouts (with us in diameter 65mm). The connection of the cable is a little fiddly, but to reach the fixing screws and tighten well. By a separate cover the contacts are well protected. Go from the transformer itself from any disturbing noises and also wireless or radio is not disturbed, often described as similar devices. From me a strong buy recommendation.