Over time, Christmas light strings can get damaged ... it's necessary to replace or repair any bulbs that are missing or broken. Missing bulbs can prevent the entire string from lighting up ...

In this setup, if one bulb burns out in the strand, the current won't flow through the entire circuit, which means the entire string of Christmas lights will go out. Some of these could be ...

Most of us have experienced the frustration of uncooperative holiday lights. After a year of storage, Christmas tree lights often need repairs before they're ready for use. There's a simple way to ...