After I had been annoyed for years about a similar product because it always fell apart, I wanted to test these lamps, because the two sides are fixed here with at least one screw. In principle, achieved even better durability, however, sits the key variable in the handle so that sets an overall rather labbe Riger overall impression. The light is sufficiently bright and pleasant and if I have a brilliant idea, how I can use the key-fit, I am satisfied. Until then, three stars because indispensability.