zephyr50

Help!! I need advice on T5 lights. I have a unit I purchased 2 years ago from a Canreef member. In November I changed 2 bulbs of the 4 bulb unit. Then the side (2 bulbs) that had not been replaced yet went out - both bulbs. I put in 2 bulbs that I had that I had been switched out before. No luck. Then one day later the side went out that had the new bulbs. Do T5's just go like that? Can they be repaired? What is the usual life span of the units? I am trying to sell my tank and don't want to buy a new set. Anyone have a used T5 (24 inch) that they are selling? My corals are fading fast and I can't find a buyer. Help!!! Advice? Suggestions?? Thank you.