New to lighting. Need suggestions

This is my bridge that I built for my train due to space it is a display piece and not part of a full layout……yet.

 

there are 6 red warning “lights” on the top of the bridge 2 at each end and 2 in the middle. I would like to have the flashing and wondered if Brickstuff staff or anyone else could recommend what I would need to make these light up and flash with all 6 flashing at the same time.

Another option I would like would be to have the ends flash together and the 2 in the middle alternate those

 

thanks for advice and glad to be aboard (pun intended)

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