Originally Posted by Capzor
The bulb is going strong, no sign og dimming, flicker or anything untoward
I use the projector heavily, at least 4 hours a day.
Originally Posted by kreeturez
Nice; thanks for the feedback!!
I guess I'm keeping it!
Capzor: how's your fake-as-heck bulb going!?
Just to follow up: at around 4200 hours, last week I decided to give this bulb a try since the original recently started getting a bit dim (I use it almost exclusively in brightest mode - SmartEco).
So I tried my cheap-as-chips non-original bulb (similar to yours ;-). I had low expectations (because it looks pretty fake!); so in my haste I didn't screw the housing into the projector because I wanted to quickly test it out: I simply plugged it in, secured it in place, closed the lamp compartment, and fired it up. And it was dim as can be. So I figured it was the cheap-and-dirty bulb. Immediately arranged an original BenQ one. It arrived today; and I did the same thing: quickly slipped it into the projector, didn't bother with the (silver) screw on the housing: and lo and behold: same abysmal brightness. Was only then that I realized that the screw is actually necessary to align the housing properly to the internal lens. (I promise I'm not normally this stupid...)
Fastened the screw, fired it up again, and voila: full brightness.
So I went back to this non-original bulb; put it back into the housing; placed it back into the projector - and tightened the cursed screw this time - and just like that, it's as bright as the brand new original BenQ one.
Here's a picture of the non-original and BenQ-branded lamp projecting the test pattern onto the same wall (both in full brightness modes):
I'll still be keeping the original one (and I'll use it first); but I guess it's nice to know that the non-originals deliver the goods at dirt-cheap prices. Whether I'd get the same solid number of hours from a non-original bulb is debatable, of course.
So for that reason, I'd always recommend at least sourcing the original Osram bulb (ie: don't do what I did if you can avoid it) - the original model number of the bulb is:
Osram P-VIP 240/0.8 E20.9n
Since these Osram's can still be found really cheap (as per earlier posts in this thread), it makes sense to go this route.
Old bulbs had this model number printed; the new ones have it embossed/etched instead.