4.5V Power Plug Adaptors
When travelling in or out of Australia, prevent damage to your devices that require a 4.5 voltage input, such as MP3 players, by using a power plug adaptor with a 4.5V power output when connecting to a local power supply. Adaptors do not convert voltage or frequency, but with the right power adaptor at hand, you can connect almost anywhere in the world to all foreign electrical sockets that need different types of plugs without issue.Input Voltage
Make certain that you're using the correct input voltage because any fluctuations or excessive voltage has the potential to fry your device. The voltage standard in Australia for domestic appliances is between 220 and 240 volts, so 240V input 4.5V output power plug adaptors will not have a problem.Output Voltage
Ensure that your adaptor's output voltage matches with the input voltage of your device. For example, 12V output power plug adaptors will work with devices that need a 12V power input. In the case of 4.5V output adaptors then, devices with a 4.5V power input work fine with them.Plug Type
Different countries use specific types of plugs, such as the 2-pin type A or the 3-pin type B plug when in the United States of America and Canada. In Australia, New Zealand or China, the type I plug, which features 2 or 3 flat pins in a triangular form, is the standard, while those in the U.K., Kenya and Malaysia use plug type G with 3 pins.Features
Select an adaptor with features that improve your life. Compact-size adaptors slip easily into a purse or bag for fuss-free travel, while those that feature short-circuit protection keep your devices safe in the case of power surges. Look for adaptors that have a low power use to save energy. If you have a number of adaptors, make sure you label them with the correct voltage and polarity so that they work.