Negative is striking that the frame incl. Panel and mounting plate is made of plastic and therefore, purely optical, really only fit to approve housings with plastic bezel. High-quality housing with aluminum blinds or even painted sheet-aperture you want but then not necessarily be retrofitted with a plastic support frame. In addition, as a further point of criticism that the supplied self-tapping screws in the true thick but relatively soft plastic material in the assembly in the housing can be rotated quickly and effortlessly. If more than has happened at one point, the holding frame is no longer fixed to install and just scrap.
So caution during assembly, because after fairly "fixed" inevitably "loose".
