In the video, a person is holding a smartphone in their hand and using it to control the lights in a room. The phone screen displays a list of different rooms, and the person is scrolling through the options to select which room they want to control. As they make their selection, the lights in the room change color and brightness. The person seems to be testing out the different lighting options available on the smartphone app. The room appears to be a living room or a similar space, with a couch and a television visible in the background. The lighting changes from blue to purple, indicating that the person is experimenting with different colors and settings. Overall, the video demonstrates the convenience and versatility of using a smartphone to control home lighting systems.