Your projector has holes more than 12 inches apart or weighs more than 30 lbs (13.6 kgs), this mount will not work for your projector. Please check specifications to see if this mount is compatible with your projector
SPECIFICATIONS
Maximum Weight supported: 30 lbs (13.6 kgs); Profile: 10.62'' to 21.25'' (27 - 54 cm)
Ceilings Supported: Regular ceilings (drywall or wooden beams)
Note: This mount does support vaulted ceilings and walls
Adjustments
Tilt Range 25°up/down Pan/Swivel Range 360°. Heavy duty steel construction.