The transition from a warm light to a bright red light, accompanied by the text "Red light: ON".

The video opens with a bedside lamp emitting a warm, orange light. The text "Red light:" appears. The light then transitions to a vibrant red, and the text changes to "Red light: ON". The lamp displays a digital moon and dots. The text then changes to "Brain:", followed by "Brain: OFF". Finally, the text reads "Go to sleep easily with Hatch Restore". The scene is a bedroom at night, with a watch and glasses on the nightstand.