Voltage: UK standard is 230V, 50Hz. North American devices (110V) require voltage converter for high-wattage appliances (hair dryers, straighteners). Most modern electronics (phones, laptops, cameras) have built-in converters – check device specifications (look for "INPUT: 100-240V").
Plug Type: United Kingdom uses Type G plugs with three rectangular pins in triangular pattern. This is different from European (Type C/F), American (Type A/B), and most other world standards. You WILL need adapters.
Adapters vs Converters:
Where to Buy: Purchase adapters before arrival (cheaper) or at Edinburgh Airport, Boots pharmacy, Tesco/Sainsbury's supermarkets, or electronics stores. Hotels sometimes loan adapters but don't rely on availability.
Multi-Device Charging: UK plugs are bulky. Consider universal travel adapter with multiple USB ports to charge several devices from single outlet. Many hotel rooms have limited outlets.
Hotel Considerations: Modern hotels provide bedside USB ports, but older properties and B&Bs may have limited outlets. Reception can usually provide adapter loans. Bathrooms have shaver sockets (110V/230V) for electric razors only – not suitable for hair dryers.
Recommendation: Bring at least two Type G adapters (one for accommodation, one for day use). Check all device voltage compatibility before trip. For longer stays or multiple devices, invest in quality universal adapter with USB ports (£25-40).