Most projectors have a built in lamp hour counter.
Projection lamp is nearing end of life.
For basic troubleshooting information see the links below.
Except for some entry level projectors most lamps retail for 199 to 449 range.
These lamps do not simply burn out at the end of life like halogen lamps.
An individual lamp s light output duration is based on a bell curve so that a majority of but not all lamps will meet the lamp.
Why is tv saying projection light blub is at its end of life please replace soon.
Clean using only a lens cloth and a proper solution.
This value is expressed in numbers of hours and is typically around 1 500 to 2 000 hours.
Turn the projector off and back on.
Bad rear projection tv bulb.
Or have a done something wrong.
The projector s lamp could be nearing end of life.
The tv is working finenow.
They will slowly grow dimmer and less effective over time.
It s the bigger more powerful business projectors on one hand think 8000 lumens and up and some of the mid high end projectors 4000 and up where 400 or 500 is not uncommon.
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Those materials are available from photography stores.
All projector lamps have an expected operating time called lamp life.
Newer models claim 5 000 hours of lamp life and more.