Don't plug it directly into an outlet, you will cause damage to something... Depending on what CHE you are using, several things could happen...
- You could burn yourself
- Something will catch on fire
- The CHE will definitely be destroyed
If you want to use it in Europe, you will have to use a transformer in order to do so. A cheap transformer will do, as long as it can handle the wattage that you're planning on using.
Since the CHE or the lamp will most likely not have any electronic parts to it, you only need to transform the voltage from 220/240 to 115/120...
However, if you're planning on using a lamp that has a timer or something similar, you will need a more expensive transformer specifically designed for electronic equipment. These will transform the voltage as described above, plus it will transform the cycles from 60Hz to 50Hz... If you don't use this type of transformer for electronic equipment, it will not function properly (the clock will go faster, slower, etc) and you could also ruin the electronic equipment...
If you have any other questions, just let me know...
~ Miguel