However, use of these plugs without a transformer or voltage converter can result in fireworks. The voltage in Europe is twice that of the voltage in the United States, and while many electronics are designed to adapt to voltage changes, it is crucial to check. If the device is not capable of handling 220 volts of electricity, it will fail.
By the time the ducklings are 3-5 weeks old, weather-dependent, they can spend warm, sunny days outside, carefully supervised and protected from predators. Until the ducks are fully feathered around 7-9 weeks old, they have trouble regulating their body temperature and need heat.
Generally domestic ducks start to lay around 21 to 26 weeks of age. Although ducks will lay anywhere they can be trained to lay in low nest boxes especially if you place some pot eggs in the box. Plenty of straw which is changed frequently will help to keep the eggs clean once they start to lay. As they approach 20 weeks I would put some pot eggs in a low nest box or place a big pile of straw in the corner of the hut with some pot eggs in. My ducks started laying at 20 weeks old. I have found that my khaki campbell ducks generally lay their eggs early morning which means that it is not difficult to collect the eggs as they usually lay them in the hut before they are let out to free range for the day. I hope this helps.