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post #31 of 37 Old 10-18-2013, 02:03 PM
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Originally Posted by coderguy View Post

10% to 50%, a good average is 20% to 35% is the norm at 1000 hours.

Yikes, that puts the half life of the bulb at under 2000 hours. Luckily for me LG are releasing a 1080p LED projector soon for a reasonable price. I'm keeping a close eye on Amazon and the thread for it.

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post #32 of 37 Old 10-18-2013, 02:11 PM
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Quote:
Originally Posted by PENDRAG0ON View Post

Yikes, that puts the half life of the bulb at under 2000 hours. Luckily for me LG are releasing a 1080p LED projector soon for a reasonable price. I'm keeping a close eye on Amazon and the thread for it.

Remember we do not see light in a linear manner. We are unlikely to be able to notice a 10% change in light for example.
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post #33 of 37 Old 10-18-2013, 02:27 PM
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post #34 of 37 Old 10-18-2013, 03:53 PM
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Do you use that 70 inch TV in the living room or theater room ?

Perhaps if you can hold out until next year some more 1080p led projectors would be coming out on the market.
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post #35 of 37 Old 10-18-2013, 04:03 PM
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Originally Posted by DLPProjectorfan View Post

Do you use that 70 inch TV in the living room or theater room ?

Perhaps if you can hold out until next year some more 1080p led projectors would be coming out on the market.

Family room with lots of light. I was going to convert a spare bedroom into a dedicated theater room next year. I like to start my research early and plan things out. biggrin.gif

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post #36 of 37 Old 10-19-2013, 12:05 AM
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Quote:
Originally Posted by PENDRAG0ON View Post

Yikes, that puts the half life of the bulb at under 2000 hours. Luckily for me LG are releasing a 1080p LED projector soon for a reasonable price. I'm keeping a close eye on Amazon and the thread for it.

The bulb does not dim linearly, it dims the fastest in the first 1000 hours, then after that point it dims much slower. For instance a bulb that dims 35% in the first 1000 hours may only dim 15% in the next 1000.


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post #37 of 37 Old 10-19-2013, 05:10 AM
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Quote:
Originally Posted by PENDRAG0ON View Post

Yikes, that puts the half life of the bulb at under 2000 hours. Luckily for me LG are releasing a 1080p LED projector soon for a reasonable price. I'm keeping a close eye on Amazon and the thread for it.

If the projector is sized correctly for the screen size, gain and throw to start with, normal light loss though aging is not a problem. People tend to buy over sized > 120" screens and a projector that can just about light up that size with a new lamp. Then 500 hours later they are pissed when there isn't enough light.. The manufacture may say image from xx - xxx but that is just how big the lens will make the image not that the projector can actually light it up to a sufficient level to be watchable.
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