These recessed spots are processed very stable and clean. The finish is smooth and they make an overall impression of high quality. The spots can be easily and securely mounted in a false ceiling with the two spring clamps on the back. By turning the aluminum retaining rings, the bulbs can be easily installed or removed without having to remove the entire spot-frame. In addition, the spots can be tilted in one axis. The included LED lamps may have very slight variations in the shade of white - with my order 2 of 8 LED's were a bit yellowish.