I know nothing about cars...There's a tail light for when it's dark...A brake light for when you're using the brakes...A reverse light I think?Any others?
You may have included this but, The third brake light located in the shelf below the back window or built into the trunk lid or on vans and SUV's on the top above the rear hatch.
you have tail lights, turn signals, brake lights and back-up lights. that,s it and also the license plate light.
