I have just looked in the menu at the lamp life on projector and it says 155hrs - does that mean it has used that much or that is the amount left to use?
Usually it signifies lamp hours used but that could depend on the pj.Most pj's have 2000hrs as a min and up to 5000 and even more depending on the make model. Lamps of course can fail at anytime though and this can vary depending on type of use.