： Christmas lights, also known as fairy lights, are strings of tiny lights often used during the Christmas season. They can be hung from the roof or wall of a house to create a festive atmosphere. Christmas lights began to appear in the late 19th century and were initially used as an outdoor decoration for homes and businesses. Over time, they became an increasingly important symbol of the holiday season and were used to decorate both homes and public spaces. Now, they can be found decorating everything from Christmas trees to streets and homes. The earliest Christmas lights were made of glass and were quite fragile. Todays Christmas lights often use plastic or other types of materials and feature intricate designs. The most popular types of Christmas lights are traditional twinkle lights and LED lights, which are both energy efficient and long-lasting. Christmas lights add a touch of festive wonder to any holiday. Whether youre decorating your home for the holidays or just looking to brighten up a space, Christmas lights are the perfect way to spread some holiday cheer.