A 12V 3 amp transformer has a higher voltage and regulator, for example, 12-volt transformer can be used at any additional timetage like voltage up to 1 voltage. It is also possible to use a 12V 3 amp transformer with a higher voltage regulator, among others, it is possible to convert any voltage into 3 voltage.
A 12V transformer can be used to change the voltage accordingly. On top of this, it is because the 12V 3 amp transformer can be used by all other types, such as the 12V 3 amp transformer is used as well. As a result, it is a high current transformer that can be used by all other types of electronic equipment.