Continental European 1amp transformer. Our plug-in transformers provide a safe and convenient power source for any dollhouse or miniature room. All Cir-Kit Concepts' transformers are designed to plug directly into a 115 vac wall outlet, thus eliminating the need of building a special transformer enclosure within the dollhouse. The four most popular versions contain a built-in thermal circuit breaker making them virtually burn-out proof. In the event of an overload or short the thermal breaker simply opens and removes voltage until the unit cools. After cooling, the breaker resets itself and automatically reapplies voltage to the output.