If you're like us, you don't even want to think about how many broken Christmas lights you've tossed over the years. Thankfully, someone came up with a clever solution for fixing dud lights in seconds. The LightKeeper Pro [1] allows you to quickly find the bad bulbs that are causing the problem — all it takes is a single bad bulb to make the entire string of lights useless. Check out the videos to see how it works!

How to Find a Bad Bulb With LightKeeper Pro

How to Fix Light Sets With LightKeeper Pro