OldChristmasTreeLights.com

For your enjoyment

Yes, you can use them outdoors until you move the lights and expose the little holes where the lights were. BTW, the same thing happens when folks move those 12-volt garden lamps around on the cord. But they're only 12 volt. Ouch!

Thanks for posting, Maria!

Paul, the wire harnesses used in those sets used an exceptional super-soft rubber covering that would seal over the holes from the socket contacts even if the socket had been in the same place for several years.

Fred, that's nice to know.