Lighting on Sump/Refurgium?

[Twisted-1]

What type of lighting is best for my Sump/Refurgium? I have a PC light I plan on using on it (65 watt) but is there anything else that I can use on it? Is this overkill for a Refurgium. It is mainly for macroalgea growth.

So in general what types of lighting works on a Sump/Refurgium and how long do I keep the light on? I have been told to keep it lit 24 hours a day. Just wondering how others have set up their lighting.