Christmas Lights are one of the most popular and essential features of Christmas decorations. In many countries, people erect Christmas lights as part of their festive decorations. The beautiful display of bright sparkling lights can create an atmosphere of celebration and bring the spirit of Christmas alive throughout the entire holiday season. Christmas lights come in a variety of shapes and colors, from basic white to dazzling multi-colored bulbs. Some Christmas lights are even made to play music or sound effects when they are switched on. The traditional use of Christmas lights started with the German invention of electric lighting around the turn of the 20th century. The first Christmas light displays were created by the well-known department store called Wanamakers in Pennsylvania, U.S, employing 80,000 lights in their show window. The lights had a big impact on society and soon gained in popularity. In the 1950s, millions of small lights were used to decorate American homes and streets, forming the look of modern Christmas decorations. Today, Christmas lights have become a tradition all over the world. Many cities display elaborate light displays and they hold Christmas light competitions. Lights are also put up in homes and businesses and used to line driveways and paths. All in all, Christmas lights are an important part of the holiday season, creating a beautiful atmosphere and making us remember and appreciate the most wonderful time of the year.