In the video, a man is seen holding a red car light. He then proceeds to attach it to the back of a car. The man carefully aligns the light with the car's body and secures it in place. Once the light is attached, he tests it by turning it on and off, ensuring that it is functioning properly. The man's actions are deliberate and precise, indicating that he is experienced in this task. The video provides a clear view of the process, making it easy for viewers to follow along and understand how to attach a car light.