I was just re reading your post, and my light may possibly be too small for your tank. I do have 2 for sale but not sure if that's effective use of your money. I think one thing to keep in mind when you consider any fixture is to research the quality of the light it produces. If you're goal is to grow plants properly, that's critical. If you follow The Planted Tank forums, you'll see many discussions on light fixtures.
Here's some eye candy for the Azoo light if you do indeed want to try it. Honestly I'm so disappointed I'm not able to put them to use myself. Such a beautiful piece of hardware.