Some installation steps you should learn: 1. Confirm the installation position by the screen size and local length of the projector; 2. Make an installation hole same size with decorative board in the ceiling; use 4 explosion screws (M8*12) to fixed the mounting plate of projector lifts 3. Insert the projector lifts into the mounting plate; between the mounting plates and the projector lifts with 4 screws to tighten. 4. Adjust switch of the running distance to achieve accurate positioning 5. Install the decorative bottom plate; adjust the screw rod to make the decorative plate and ceiling to be paralleled. 6. Install the universal head, fixed projector |