Feature: 1. The 9V battery can be directly connected. After the battery is connected, the lamp or small socket can be connected on the other end. 2. 9V Electricity is absolutely safe and there is no need to worry about damage, wonderful and reliable use. 3. Used with 1:12 doll house miniature lamp, can connect one end of the lamp plug to the other end of the 9V battery to power the miniature lamp. 4. It will make your dollhouse mini lights light up and look very dreamy and lovely, help you create a beautiful dollhouse scene. 5. High quality plastic material with good wear resistance ability is not easy to corrode and safe to use. Specification: Item Type: Dollhouse Lamp Power Supply Material: Plastic Should connect with 9V battery (not included), the working voltage of the lamp is 12V Input Voltage: 9V Output Voltage: 12V . Package List: 1 x Dollhouse Lamp Power Supply