lightmaps vs lights

So if I have lightmaps baked for all my objects, do I need any actual lighting from unity? I'm using the free version so i'm assuming any sort of real time lighting would be pointless. Would there be any benefits from including lighting from Unity? Can I for instance achieve the effect of a spotlight and have it read from a first person perspective, where you have halation lens flare and white out as it passes that view?

If you are baking the lightmaps from your 3d software and importing it into unity the only use of lights in unity would be for flares/halos etc.And yes, the First person controller camera would support that even in the free version.