Christmas lights are a popular decoration to mark the celebration of Christmas. While strings of lights have been used for festive occasions throughout the world, their use at Christmas first became popular in the late 19th century, when string of electric lights were made available for use as exterior Christmas decorations. Now it has become a common practice for people to decorate their homes and businesses with Christmas lights to show their festive spirit. Though the type of lights used has changed over the years, the theme remains the same. At Christmas time, we still hang strings of multi-colored lights around our houses or buildings. We can find a variety of Christmas lights ranging from simple indoor lights to large, complex outdoor displays. The type of lights being used has also evolved over time. There are now LED bulbs, which allow us to create even more unique displays. Christmas lights have become an essential part of the holiday season. From small to large, theres a display for everyone. They help make Christmastime more festive, inviting, and warm. Whenever the lights are turned on, they take us back to the special moments of the past Christmas celebrations and a reminder of the ones to come.