An electric creaser transformer provides power for one iron and includes temperature control to match the output precisely to the material you are using. You can choose from a one-handle transformer or a two-handle transformer. Both have temperature control and come in either 110V (USA & Canada) or 220V (Europe).
The two-handle version of the transformer has a more advanced power regulator and allows you to independently control both handle temperatures. Having two handles allows you to switch between different irons and accessories instead of having to wait until the iron cools down to switch them. The two-handle version is also useful when you’re working as part of a team.
Note: For using a 220V machine in the US, you can use a step up transformer.