InFocus Corporation LiteShow Mount to Attach LiteShow3 or LiteShow4 to Ceiling Projector Mount Attach a LiteShow III or LiteShow 4 to a Universal Projector Ceiling Mount (PRJ-MNT-UNIV) Attach a LiteShow III or LiteShow 4 to a Universal Ceiling Mount for Large Venue Projectors (PRJ-MNT-INST) Extends up to 2" for optimal placement Easy installation with hardware included