How do you turn the lights on and off?
Enable/disable entity.
How do I make a bright light?
What are you asking exactly? You can control the light’s color or intensity, either via the Editor UI or via script.
The screenshot you paste above of the BMW i8 suggests you might be interested in creating ‘light flares’. These are essentially just screen aligned plane objects which face the camera. They typically have the following kind of texture applied:
You’d use additive blending on the material to add the flare color over the rendered scene. It has the appearance of a bright light source.
You might like to also check out the Light Halos tutorial.
Thank you very much.
Thanks to that, I was able to solve it.