How long does T5 blub last?

[jc9394]

Some say around a year, some say up to couple year.

 

[fijiblue]

I've heard overdrived 10 - 12 months / non overdrived up to 18 months. Not sure if it is true or not. Sanjay is doing some research on T5's vs MH so maybe if you drop him a PM he might be able to look into it for us.
http://www.reefcentral.com/forums/showthread.php?s=&threadid=1013083&perpage=25&pagenumber=1