You could definitely try out an emitter and see if that works.
When working with Lights, make sure you adjust the intensity of the light until you can see that the light is on.
For spot lights, Aperture adjusts the size of the "spot", and fall off is the distance the light will travel.
When you create a light, make sure you place it in the right spot using all of your views so that you know it's in the right place. Spot lights have a direction, The spot light in Evolve has a control point for the origin of the light, and the direction the spot light is pointing.
Does this answer your question? Let me know if you need any more help!