How to change scene lighting in Sequencer

Greetings all!
I am new to sequencer and I’m trying to figure out how to change the scene’s lighting upon triggering a Sequence, The idea is to dim the environment and shine light on a stage but I can’t seem to find any tutorials on that sort of thing.

I tried messing with level visibility but that only seems to add objects to the scene from other levels.
Any help would be greatly appreciated, thanks!