There are several models you can choose from when selecting a Voltage Converter. Be sure you know what the voltage is of the appliance you intend to use. Save the box or instructions that your device comes with so you can reference them.
"When selecting an Autotransformer, it is essential that a suitable model is selected of an adequate power rating (VA/Watts) for its intended use. In all cases it is important that the transformer is rated "ABOVE" that of the appliances with which it is intended to be used."
(This is a guide and must not be used as a definite list, check individual rating labels or instructions whenever possible)
Here is what the instructions say they can do:
100W USA to Europe Voltage Converter (Tacima brand): $30+
Mobile phone Charger, Portable Radio, Personal CD Player, Games Consol, Epilators, Computer Printers, Heat Lamps, Nebulizers.