Tail lights are also known as taillights, tail lamps, taillamps, brake lights, brake lamps, rear lights, or rear lamps. The funny thing about them is that not all tail lights are considered brake lights, but all brake lights are considered tail lights.
Tail lights are red lights on the back of a vehicle. They are turned on whenever the head lights are on. When stopping, the tail lights have a bright red appearance compared to a dimmer red appearance when the vehicle is in motion. Tail lights are on the rear end of the vehicle, facing rearward.

Sometimes you may notice that your car's taillights work, but your brake lights don't work, and vice versa. If they were the same light, this wouldn't have happened.
The brake lights come on whenever you put your foot on the brake. A pair of working brake lights is essential for driving and road safety. They signal to the driver behind you that a change in speed is imminent.
When you turn on your headlights only at night or in the dark, the red taillights remain inactive during the day. They are less bright than brake lights because they are designed to be turned on in hazy, foggy and dark conditions.
The function of the taillight is to inform the other driver of the presence of your vehicle if visibility is impaired. Like brake lights, they can fail due to broken lenses, broken wiring, faulty bulb filaments, and other causes. Regular inspections will help identify problems early. These light bulbs are cheap and fixing them is a quick job.