How do I make two light flickers sync together?

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You make a Custom Event inside your StreetLamp blueprint that turn On/Off both the light bulb and the spot light at the same time. That way when you want to flicker, just call the Custom Event and that event will the be the one to sync those 2 for you.

EDIT: Below is an example with changing dynamic material in it:

  1. Define the Dynamic Material Instance you’ll be changing in the construction script of your Street Lamp actor.

266700-example9.png

  1. The Switch On and Off events that syncs up your Spotlight visibility and Emissive value.

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Note: The Emissive value is the multiplier of the LinearColor in the material that defines how glowy the object will be based on color.