srphelps Posted March 5, 2007 Share Posted March 5, 2007 hey guys a freind of mine has a DLP HDTV. samsung I beleive but he has to change the bulb about every 8-12 months but another freind of mine has a sony LCD 40 in HDTV for about 2 years and never had a problem with it so my ?? is how does a LCD tv light the screen or is it that the DLP makers want that keep coming back money they say LCD will last 80,000 hours but a DLP will last 3000 IF YOUR LUCKY.(from what i hear) so I'm sure all of you most likely have one or the other Quote Link to comment Share on other sites More sharing options...
michael hurd Posted March 5, 2007 Share Posted March 5, 2007 If your friend is replacing the backlight with that frequency, he may want to get the household voltage at the wall plug checked, it may be abnormal. Samsung has recently released a DLP with white LED backlight, that one should draw a lot less power and last longer than a conventionaly bulb. Quote Link to comment Share on other sites More sharing options...
kelA Posted March 5, 2007 Share Posted March 5, 2007 From what I have seen, the Samsung with the LED technology is not as bright as say the DLP. I believe the life for the LED is around 60,000 hrs. of normal viewing. Quote Link to comment Share on other sites More sharing options...
Jay481985 Posted March 5, 2007 Share Posted March 5, 2007 most lcds use a cold cathode lighting for backlight right? Quote Link to comment Share on other sites More sharing options...
ScorpsFan Posted March 5, 2007 Share Posted March 5, 2007 3K hours is about right for any projector bulb, which is what rear projection DLP and LCD units use. I just replaced my Sony bulb after 2.5 years and my Samsung one is still going strong. I'm guessing either a power problem at the outlet, not enough circulation to keep the set cool (i.e. inside of a cabinet without extra fans) or constant tv on time (read: lots of DVD's or game playing?) any of these will considerably shorten the life of the projector bulb. And while bulbs are expensive (about $200 for Sony) the picture is just like getting a new tv. Hope this helps. Quote Link to comment Share on other sites More sharing options...
sunburnwilly Posted March 5, 2007 Share Posted March 5, 2007 My 50" Samsung DLP is 2 months shy of 3 years old . Still on the original bulb and it's on all the time . Quote Link to comment Share on other sites More sharing options...
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