GoolRC 20 Pieces Park Courtyard Lanterns Streets Lamp Modelmaking Hexagonal Single-head LED Lights Lamppost Model Street Lighting 3V DC It is perfect for model courtyard or street landscape. With the model LED lamppost, you can light up your model layout. Each has a single head, completed with wires and bulb. A great starter set of street lighting model and 3 Volt miniature lamp poles for model street enthusiasts and builders. These lampposts are suitable for using at supply voltages of 3V only, you must connect a resistor in series before you use them on 12V or 16V. Material: plastic