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John writes – “I saw this and just had to share. You know those very neat LED Christmas lights that you could find on the clearance tables a few months ago, you remember them now because your going to kick yourself for not buying a crap load of them. Anyway, Joe has a tutorial on how you can hack them to run on low voltages, like 12VDC. Just like the voltage you get from your computers power supply. I think you can see where this is going…” – Link.