The LightKeeper Pro is a Christmas miracle, especially when you’ve discovered the Christmas lights you carefully packed away last year aren’t working. But before you turn into the Grinch, save the day ...

A long, long time ago there was a great Design Idea for a simple gadget to find a bad bulb in a series-connected string of Christmas lights: This is really simple and works great, but it exposes the ...

I remember the Christmas tree when I was younger. It had these large colored bulbs—they were pretty, but you couldn't touch them. Yes, these were the old style incandescent lights, and they could get ...