Christmas lights add a magical element to the winter holiday season. It is impossible to drive through a neighborhood without seeing houses decorated with strings of Christmas lights. There are many types of Christmas lights. Some are glowing lights, some move and flash on and off. There are low-voltage and outdoor types available on the market. All types of lights can be used to decorate a house for the holidays. The importance of Christmas lights has grown over the years. Some people decorate the entirety of their home with lights, while others opt for just a few strings along the eaves. Some choose to drape lights along the roof and around door frames. Lighted holiday decorations are available in a variety of colors. The most popular are white, yellow, blue and red. Some houses have multi-colored lights that flicker and sparkle throughout the night. Aside from their decorative uses, Christmas lights save energy, provide a sense of security, and improve the ambiance of a home. They also serve as a reminder of the joy of the holiday season. Christmas lights are an essential part of the winter holidays. Its not Christmas without twinkling, shimmering lights!