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.
Semi-confinement duck housing is similar to the above in many respects with the exception that ducks over 2-3 weeks of age are allowed outdoors during the day. Ducks over 4 weeks of age may spend much of their time outdoors with minimal use of shelter.