What is an electric match used for in pyrotechnics?

An electric match is used in pyrotechnics specifically to initiate pyrotechnic devices by igniting the materials. This is achieved through the use of an electric current that travels through the match, causing it to ignite and subsequently ignite the pyrotechnic material it is attached to. This method of initiation offers several advantages, such as providing a reliable and controlled ignition source, which is essential for ensuring safety and precision in pyrotechnic displays.

The ability to ignite materials with precision makes electric matches crucial for choreographed shows where timing is critical, allowing for synchronization of effects. In contrast, the other options do not accurately reflect the purpose or function of electric matches in the context of pyrotechnics.