The projector you should use depends on certain factors such as the brightness of the room the systems is to be installed, the size of the image required and the height the projector will be installed at.
In a very dark room, a projector of 3000 lumens or more shall suffice but brighter rooms will require a more powerful projector.
Most projectors come with a zoom lens so you can adjust the projected image size. You can also purchase different lenses for a lot of projectors; this may be required for specialist installs, for instance, you may need a Wide Angle lens to create a large image in a room where the ceiling is quite low. Please see your projector's manual for information regarding Throw Distances and the different lenses available. You can always contact us for advice.