I bought this bracket in the hope that I can install the projector with a strong inclination, however, can be an inclination about 15 ° only reach when attaching the bracket to the ceiling. On the wall is the maximum inclination between 5 ° and 15 °. So I brought the beamer but on the ceiling. That just does, especially because you can separate the plate from the rest, and can be as simple Mark. One problem was the guide. This was not really helpful, as it is very accurate and I have so unceremoniously assembled without guidance, which also works great. Another problem is that the enclosed screws were despite spacers too long for the projector, so I had to use washers. This also worked flawlessly. In short you get a mount (if it is first installed) bombenfest / ceiling keeps the projector on the wall and the projector is no longer rotated or tilted.