Australia primarily uses Type I electrical sockets. These have three flat pins in a triangular pattern. The standard voltage is 230V and the frequency is 50Hz.
When traveling to Australia it's crucial to consider the voltage requirements of your electronic devices. If your home country operates on a different voltage (e.g. 110V) you may need a voltage converter to ensure compatibility. A voltage converter modifies the electrical output to match the requirements of your devices.
Some modern electronic devices such as laptops and smartphones are designed to work with a range of voltages (typically 110-240V). These are referred to as dual voltage appliances. Before using them in Australia check the voltage specifications on the device or its power adapter. If it supports a wide voltage range you may only need a plug adaptor to fit the Type I sockets.
For single voltage rated appliances that do not support the Australian standard voltage (230V) a voltage converter is necessary. Using these devices without the proper voltage modification can lead to damage and malfunction.