I have 2 projector in my church install in ceilling. First one we had about 5 yrs. amd seond one is about 1 year. liquid crystal projector. CP-S225WAT/CP-X275WAT. Hitachi inspire the next projector cp-x200/cp-x300/cp-x400 my question is which one is the older verion? because the one that we had use for about 5 yrs now need a lamp replacement. but we dont know witch one is. cant see the number of the model because too high up the ceiling. Can you tell me which of these two projector is the older one or newer one? so that I can get the lamp for it. .