I've got me for my Acer H7531D projector. At first I thought there are problems because the bracket with four screws on the projector should be fixed. But I could just remove a holder and with the other three then make the projector firmly. There but for large screws were unfortunately doing for my projector, I have brought with simple but suitable. The projector now holds bombproof. The bracket can be mounted with 6 screws in the ceiling that keeps then definitely. For me, the holder is almost too long. I have a ceiling height of 2.40 m and the upper edge of the screen depends on 2,10 m height. This I had to set the projector at an angle, so that I can use the full size of the screen. What is still very good that if you have aligned the projector, you can just tighten all the screws of the bracket and it moved so fast nothing.
