Multiple light drain

Thank you very much. I am struggling a little with adding the lights to the car blueprint. My lights are just spotlights I dragged onto the scene (so no blueprint) (is this what a component is?).
How exactly would I add them to be part of the car? as shown in your example:

PointLight(CarSeat1) is the name

I guess I am going to need a step by step on how to do it