Forward Voltage :DC 3-6V;Forward Current:20mA; Viewing Angle: 30 degree, Pre-wired with built in Resistor;Provide 5mm one types of lamp beads with 20cm long pre wired led to meet daily basic needs. Easy to use, you just need to connect the positive and negative wires to your battery or power supply;High quality material and flexible cable, good using experience and long service life Low power consumption and stable performance, high performance-price ratio Extensive application areas, can be used in hobby lighting, car, boat, industrial, camera, toys, DIY computing and costume design This product contains 30 pieces of emitting diode LED lights which can be widely used in hobby lighting, car, boat, industrial, camera, toys, DIY computing and costume design. You can choose 5mm lamp bead according to your using purpose. And the LED lights emit light in White, Moreover, we provide a 20cm long pre wired led, so you can use these emitting diode LED lights conveniently. Specifications: Color: black + red Material: plastic + metal Wire Length: About 20cm / 7.9-inch LED Type():5mm White Package Contents: 30pcs x Pre-wired LEDs Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.