Zoa Lighting

[Beanz]

Hi all i am wondering what would b a good light for my 4' 45 gallon tank, it has a 15" of water in it. i am not looking at spending a whole lot of money on it but i could save if needed. Just want to know a good light that'd work for this application. Don't have a budget yet so.. ya lol. Rigt now i have a coralife dual t5 thing. Anyways any input would b appreciated.

Cheers, Ian