Since the projector won't start I can't exactly check the number of hours but my norm is very light usage. I tend to watch a movie with friends once a week like clockwork, then on occasion I'll watch another one that same week. I'd estimate a total of 300 hours minimum to 400 hours max. I'd be very surprised if it was higher than that.
When I bought the 5020 back in early 2013 it immediately had a problem and I quickly replaced it then. So this one itself is a replacement but it's been rock solid until now.
When I called and they verified my registration they immediately setup the replacement shipment, no questions asked, that's really good service. On the other hand it's worrying that this is the second time in just 22 months that I've needed to do this! My old InFocus Screenplay 4805 has got many more years on it and never had a problem.