You shouldn't have a problem creating a Sunrise/Sunset simulation with the Profilux Light 2.
Here are the features I found from the Aqua-Digital website:
GHL ProfiLux Light II Controller
Price: $349.99
The much awaited GHL Profilux Light II is now here.
The Profilux Light II has been designed to provide independent control of your aquariums lighting, Tunze pump and temperature control needs, plus other great built in functions explained in detail below.
The great benefit of this unit is that you don’t need a Profilux main controller to use the Light 2 as it can be used as a complete stand alone even if you do not have a ProfiLux controller set up, so if you are just wanting to control lighting including dimmable lighting, Tunze pumps and temperature, this is the most affordable unit on the market today for achieving all these features in one unit.
If you are running an existing ProfiLux set up, the light 2 will not only increase the expansion of your system affordably but also relieve your main controller for further function add on’s.
Features â€"œ
Full lighting control with built in interface for dimmable ballast control
Temperature control port (probe is not included, sold separately)
Tunze stream pump control
GHL LED light control
4 x 110V 15amp high inrush protected power sockets built in
RS232 connection Interface for networking to pc or laptop hook up.
HTH