These are Large professional units designed to be ceiling mounted They have a large diversity of uses and are commonly used in conference rooms Lecture rooms, meeting rooms, board rooms etc. Ceiling mount projectors are suitable for long term hire in areas where it is desirable to have the projector hard wired in and out of the way, not taking up floors space. The cost of installation makes these units more suitable for longer term hire. Our units are suitable for rooms that cater for audiences of 1000 people.