In this video, a person is seen holding a light bulb in their hand. They then proceed to unscrew the base of the bulb, revealing the filament inside. The person then uses a lighter to heat up the filament, causing it to glow brightly. The video provides a close-up view of the bulb and the filament, allowing the viewer to see the details of the bulb's structure and the way it reacts to heat. The lighting in the video is dim, with the focus solely on the bulb and the person's hand. The person's actions are deliberate and careful, indicating a level of expertise or familiarity with the bulb. The video does not contain any text or subtitles.