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NO PC LED controllers?
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Mysterioii:
Take any one of em that's powered off of usb and solder two wires on there and connect it to any 5 volt source you want.  Or program an arduino as suggested...  it already allowa you to power it from either the usb or a power jack
lilshawn:
LED rainbow runs off 12 volts. throw it on a wall wart and done.
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