What do we call the fireworks that are used in theatrical performances?

The term used for fireworks in theatrical performances is "pyrotechnics." This word specifically refers to the technology and art of using controlled explosions and fire in a performance context. Pyrotechnics encompasses a wide range of effects, including the creation of spectacular visual displays using fireworks, as well as other forms of stage pyrotechnics, such as smoke, flame, and explosions that enhance the dramatic experience for the audience.

In the world of theatre, pyrotechnics require careful planning and safety measures, as they not only contribute to visual storytelling but also need to be managed to ensure the safety of performers and attendees. The other terms, while potentially related to effects in performances, do not specifically denote the use of fireworks. Special effects is a broader category that includes various production techniques, light effects are specifically related to lighting design, and stage fireworks is a less common phrase that may not adequately represent the specialized nature of pyrotechnics in theatrical contexts.