Price is for 1 xGreen/Yellow/Red Railroad Dwarf SignalsN Scale 1:160made of 2mm LEDs Connect the resistor to the common anode ( Black Wire ) if you will use them on 12V or 16V Operating Voltage = 1.8V to 2.4VOperating Current = 18mA to 20mAwill come with resistors for 12V or 16V use CharacteristicPrice is for 1 unitsSize for each : check from the photosfor N scale 1:160the signal head is made from PlasticBrand newPRODUCT DESCRIPTION Your station platform or street scenes will be more lively with these items.Perfect for Model Train Set LandscapeControl them automatically by moving train ...