If the battery has a voltage higher than the minimum voltage required by the light bulb, then any conductive material can be used to connect the copper wire and the battery to the bulb. Some common materials used are aluminum, steel, brass, or even another copper wire. However, it is important to ensure that the selected material is a good conductor of electricity, meaning that it allows electric current to flow through it easily. Otherwise, the bulb may not light up or the connection could even be dangerous.
