Thinking of setting up my first salt tank

[Ephraim]

interesting, are you saying that a T5 has a higher/better out put that PCs? I didn't know that MHs only last 12 months, someone once told me they have an unlimited lifespan. I thought T5's were only good for 6 months, 9 months does make them more ecconmical. How about power consumption, how do t5's compare to MH? How about temp, i realize that T5 need to be cooled, but compared to MH how is it? Also, what would be the reccomended suspension height above the water for the T5's. And these T5's would be suitable for what corals (low/mid/high)?

Also what does PAR mean? I'm learning the abbrev. slowly but never seen that one yet...