Let's say it's not blown.
Epson G6900WU with a 6000
lumen bulb.
It's rated at 2000hours in "normal mode" (vs. 4000 hours in "eco" mode).
I got 750hours normal, 225 eco.
I was thinking of waiting until end of May (end of our season) to do it...that would add another another 130hours (over-estimation).
Figure waiting to half-life (approximately) would be a good time.
Any reason to change it sooner?
Mike
So if the rated hours are about when 1:10 lamps fail in testing, how many hours are left in your use of the
projector this season? Are you going to be around +1,000 hours of use? In other words over double the time you have already had the lamp in use?
As for exploding xenon lamps... I can attest to one exploded in the 10gal. explosion disposal can I left the lid off once. Yea, glass 15' away. Boy were my guys not happy with me in doing so. Cleaned up huge chunks of glass weeks later. A
projector lamp doesn't have as much pressure or amount of glass. It's
reflector and housing should be sufficient to contain any such blast if xenon as per above. Probably expensive to repair, but other than in being in say +1:100 range of lamps failing - and at this
point not exploding, I would be mad if you removed the lamps due to hours other than rated.
But as others have related above, if there is dimished output, it's a valid reason for replacement. Pull the lamp, look at it's
globe capsule. See a small cloud or some frosting.. output is dimished but probably not bad enough to replace. More than that, that cloud becomes like the coating on a flourescent lamp in
wash and isn't really arc gap center pure for say video projection. Than it's more a debate about how
clear you accept. By the way, clean lenses and not mentioned filters and fans while there in maintaing the
fixture. Look for
fog goo buildup to clean. Tough to clean a
reflector lamp
reflector, but a good Kem Wipe (hospital grade cleaning wipe) should be sufficient to help remove
fog go or
pyro dust off a
reflector. Goo and dust collects heat and prevents light
reflection. Many details.
750 hours and wondering if rated for 2,000 hours if you should replace the lamps.... give a good cleaning.