Leds, Colors Available, Connection Wires,hobby Model Kit/railroad.. Features Use These to Illuminate Locomotives, Cars, Scenic Structures or Anything else Whose Appearance Would Be Enhanced with Light at Exactly the Right Place. LEDs Operate at 1.8 - 3.0 Volts DC and 20 MA. Use Resistors to Throttle the Current from Your Power Supply. Specifications Warning: For Scale Model Making Only Current(mA): 20mA Length of the Wires: 30cm Diameter of the Wires: 0.25mm Pre-wired Wires: Red & Blue, L=30cm, D=0.25 Wavelength(K/NM): 6000-6500 Package Include: 5 PCS/PACK . We are an international seller, your order will be shipped from abroad so please allow the necessary time of minimum 14 working days for delivery right now depending on where you ship to, due to ongoing delays in postal deliveries globally.