Everything about this lamp and body feels like a genuine Optoma. I believe my original factory lamp was Osram, this new one says Philips. The information on the Optoma website has disappeared and the official factory sellers now say Philips while others say Osram. I won't go crazy over it because the box, case and small details of construction all look equally perfect. I am a technician with over 43 years of professional experience and 15 years before that as an amateur. I wish it was Osram but I don't think Optoma uses them anymore? I installed it in my 2017 Optoma UHD65 4k home cinema projector. I've had 5900 hours on my old lamp, mostly on economy mode with dynamic blacks and then on high for the last 6 months. Intermittent flickering started and I felt it was time for a new bulb. Installation was easy, no experience required, just a Phillips screwdriver. The new bulb restored the brightness and I had to switch the bulb back to eco mode. Contrast, colors and brightness are excellent. Only time will tell how long this new lamp will last, I expect to have a next generation 4k laser machine by then.
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