I have never seen a lamp rated for over a 1000 hours. However people have reported using OEM's for over 2000 hours. I got 1300 hours out of my first lamp but could not watch any longer without concern.
My understanding is that my G150 will have a "2000 hour" bulb if you use the projector's automatic light control feature. It starts out at roughly 70% and gradually increases the output over the life of the bulb.
When you select this option the projector does dim a bit but not enough to make you not want to use it.
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