This is where some knowledge will be useful. If you do not know what you are doing you could blow up your computer and I am just speaking for myself, but that would be a bad thing. A lot of us you's the voltage from a lead in the computer. LEDWiz will run them and it takes the voltage from the USB line. You could get a small power supply and run em with that. Or most simply use a 9 volt battery with 470ohm resistors. The resistance is dependant on the voltage and the LEDs them selves. Do a search on that topic. It has been discussed a number of times.