Originally Posted by guitarman
Some say much more than 2hours. But if you're going to need the projector in an hours time it's best to keep it running. Also you shouldn't run a projector past 8hours if you can.
Why 8 hours? I would think that the bulb would reach its maximum temperature long before 8 hours. Once at normal operating temperature, I don't see how the length of run time would make any difference at all. It's not as if the bulb temperature is going to keep increasing ad infinitum.
On a somewhat thread-related note, is there any difference in the long-term longevity between LCD and DLP based projectors? I am planning my first home projector setup and have been reading that some people have had LCD panel issues in their out-of-warranty projectors that has required them to purchase a new unit. Unlike some people here who change their projectors more often than I change the oil in my car, I plan to use the same setup for years to come. $200-$300 bulb replacements I can deal with. $1,000+ projector replacements I can't.
edit - I should have posted here days ago. As usual, the minute I ask a question, I find an answer myself. Although I'm not sure how much of it is propaganda as the source of the information has a definite chance for bias.http://www.dlp.com/projectors/why.aspx
According to this site, long term testing showed that LCD projectors can experience a significant reduction in contrast ratio and decrease in image uniformity. This tends to make me favor a DLP solution rather than LCD as I am looking for long-term usage.
Have people here noticed real world results that would back up this website's claims?