I have this lamp exchanged my "normal" ceiling lamp because my clients often forgot that light off. The lamp was quickly installed as the lamp bottom is made of sheet metal and it lets you easily take over the already existing holes in the ceiling,! The light output is indeed for my small room (customer toilet) a bit too bright, but I did not care, the main thing is that I no longer have to run after my clients to turn off the light! To a deduction of points I have just made, since the setting of the motion sensor was a bit "fiddly". If he is but once set, this works flawlessly!
