USB powered LED/ Christmas lights

Step 3 LED

The LED has two legs the long one is positive (+) and the short one is negative (-). The wire from the red coated wire from the USB cable is the positive, wrap that one around the long leg of the LED. (if you have money you can use a soldering iron) and wrap the wire form the black coated wire around the short leg from the LED. put tape or something of the like on one leg to prevent crossed wires ( it can cause a spark, personal experience) plug the USB cable into your computer and it will light up. Simple.