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Things to concentrate while buying a projectors for events?

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A better defininition of the size and scope of the "event" would be a good start.
JimB
 
For example what size is the screen and how much ambient light is there?
(This is a video projector, right?)
 
Murphy's law ? power failure, bulb failure, lack of extension cords.
Ambient light level, Lumen/sqm at distance used and thus contrast ratio.

Power Failure.... a UPS

Windows compatibility if using USB, otherwise VGA or HDMI.
and a long video cord. ( 12m)

Resolution,

brand reliability,

a spare or plan on two for better demo.
 
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