[UE5] How do I remove a light source from an object

Basically I don’t know how to remove the light source from these 2D sprites so they could stop shining even in the dark, and cast a light source on the walls

As you can see in this image, the characters cast light in the walls when they’re not supposed to.

I am just a beginner at Unreal Engine, in fact, I started today.

Try unchecking the object’s option ‘Affect dynamic indirect lighting’