Voltage: Germany uses 230V alternating current at 50Hz frequency. This differs from North American 110-120V systems.
Plug Types: Germany uses Type C (two round pins) and Type F (two round pins with grounding clips). British three-rectangular-pin plugs and North American two-flat-pin plugs are NOT compatible.
Adapters & Converters: North American visitors absolutely require plug adapters (small cost, €5-10). USB charging devices often work on 230V but check wattage ratings. High-power devices (hair dryers, irons) need voltage converters.
Where to Get Adapters: Airport shops, electronics stores, pharmacies, supermarkets, hotel reception desks. Purchase before arrival or obtain immediately upon landing.