Lighting upgrade for a Nuvo 16

[caca007]

Hi all.
I want upgrade the LED light of my IM Nuvo 16, any suggestion? What is a good one? My budget is up to $700.
Here is a pic of my tank with the lights that comes with the tank (skylight 8w)

 

[racin2438]

2 Kessel A160e, would be my guess.....