Voltage: Bulgaria uses 230V AC electrical current (European standard).
Frequency: 50 Hz (cycles per second).
Plug Types: Bulgaria uses Type C (Europlug) and Type F (Schuko) electrical outlets.
Type C (Europlug): Two round pins. Common in Europe. Adapters available from this to other plug types.
Type F (Schuko): Two round pins with earth clips on sides. More common in modern buildings.
North American (Type A/B): Two flat/round pins. Requires adapter for Bulgaria.
British (Type G): Three rectangular pins. Requires adapter for Bulgaria.
Australian (Type I): Three angled pins. Requires adapter for Bulgaria.
Purchase adapters before travel or at airport duty-free shops. Universal travel adapters covering multiple plug types recommended for flexibility. Bulgarian shops and hotels often provide adapters for standard devices.
Voltage Consideration: Most modern devices (laptops, phones, cameras) automatically adjust to 230V with proper plug adapter. Check device labels for voltage compatibility.