LENCO LPJ-700BKGY Mode D'emploi page 10

Placing Your Projector On Ceiling
When you mount the projector on the ceiling, make sure you purchase a
projector mount that is recommended for this use and follow the instructions that
come with the mount. Before installing the projector on the ceiling, please check
to make sure the ceiling structure can support the weight of the projector and the
mount. If in doubt, please ask the advice from an installation professorial.
NOTE: Projector mount and screw(s) not included
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