What device is used to provide and control the electric current required to ignite fireworks?

The device used to provide and control the electric current required to ignite fireworks is an Electrical Firing Unit. This unit is essential in modern fireworks displays as it allows for precise control over the ignition sequence of the pyrotechnics, ensuring safety and enhancing the overall effect of the show. The Electrical Firing Unit works by delivering an electrically charged circuit to a firing device, which then ignites the fuse of the firework when activated.

This controlled ignition is particularly important in large displays where numerous fireworks are being launched simultaneously, as it allows for both synchronization and safety from remote distances. Such control minimizes the risk of accidents and ensures that the show runs as planned, adhering to safety protocols outlined in NFPA 1123.

Other options, like a match or fusee, rely on manual ignition methods, which do not provide the level of control or safety that an Electrical Firing Unit does. A ground display piece refers to stationary fireworks that do not require an ignition source themselves and would not be used to initiate other fireworks. Thus, the Electrical Firing Unit is the only choice that directly fulfills the requirement of controlling electric current for ignition in a fireworks display.