Limit to number of lights?

Is there a limit to the number of lights you can have in a single scene?

I have 4 spotlights and two point lights and I’m trying to add them to create a more dramatic effect. When I try to add another light, It does not illuminate anything. However, when I move the lights in different proximities to each other they seem to add and diminish each other. Am I overlooking something that prevents me from having multiple lights?

I believe there is a Pixel Light Count, which is settable in Edit->ProjectSettings->Quality.

Also there is a “priority” variable on the lights which determines which show and which hide. The highest priority also become Pixel-shaded lights. And I’m assuming the closest get higher priority if they match.

That help?