I bought this table magnifier for tinkering with SMD circuits and am very happy with the magnifying glass and LED lighting. They meet my expectations and I can compete with expensive table magnifiers by my profession know. The base is also solid, but the central joint is very weak, which means that, these often nachsackt shutting out the magnifying glass. Unfortunately, this can also not tighten the screw improve, because this is already maximally tightened. In my article you can see that when installing the screw someone has already slipped to the tool. This is certainly the tradeoff for the very reasonable price.