If you're talking about a light object in your scene, you can animate it and then control it via the Object: Animate Action.
If you're talking about the settings in your Lighting window, then you'll need a custom script to access it. The Object: Call event Action can then be used to run a function within that script.
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If you're talking about the settings in your Lighting window, then you'll need a custom script to access it. The Object: Call event Action can then be used to run a function within that script.