Check the listing for details. 5Pcs Pre Wired LED,Round Head LED(Multicolor,5mm,DC3-6V). Condition: New. Listed at 9.75 USD. MULTIPURPOSE - Our light-emitting diodes are currently widely used in LED large-screen displays, traffic lights, decorations, computers, electronic circuits, switches, telephones, advertisement, science experiments and more applications. WHAT YOU GET - The package comes with 5pcs pre-wired LED that are 5mm round head Outer diameter, multicolor-emitting color, DC3-6V drive voltage, 20cm/7.87" length wire.RELIABLE MATERIAL - The light-emitting diodes are made of semiconductor materials, directly converts electrical energy into light energy, and has the characteristics of low power consumption, strong brightness, long life, and bright colors.SPECIAL DESIGNED - This light-emitting diode is designed with 2 wires. The red wire is for the anode, and the black wire is for the cathode.