This transformer is capable of running up to 32 x 50ma bulbs. It is rated at 20va 12v AC and has screw terminals to connect the power supply to your Dolls House, using a 12 Socket Power Strip (LT9017) or a 6 Socket Power Strip (LT9072)
Plugs directly into a domestic mains wall socket.
It is safety protected.
For indoor use only.