The National Lampoon’s Christmas Vacation Christmas Tree Lights are festive string lights perfect for decorating your home during the holiday season. With a fun and nostalgic Christmas tree theme, these lights are sure to bring a touch of holiday cheer to your space. Made by the trusted brand National, you can expect high-quality and long-lasting decorations that will brighten up your home for years to come. Perfect for adding a festive touch to your Christmas tree or any other holiday décor, these string lights are a must-have for your holiday decor collection. String of 10 lights.