I have had a lot of luck with the odyssea brand lights and everybody has the same "you get what you pay for response" but I dont feel this is entirely true. Odysseya got a bad rep from problems with their old magnetic ballast MH lighting. I currently have two 36" t5 lights by them and they work fine.
I am guessing you are buying this from aquatraders. The lights worked great on Jason's tank and I know that the old ones used to light on fire due to the ballasts.
I would just change the bulbs that's pretty much it.