Create a captivating holiday light display with brilliant blue LED bulbs! Energy efficient blue LED bulbs and our highly durable stringers combine to create a long lasting, weather resistant lighting design that is easy to install and provides professional display for years! Opticore bulbs featuring SMD LED technology emit superior, vibrant, radiating light and last even longer than traditional LEDs while still maintaining the virtually unbreakable, fade resistant, energy efficient benefits you want. White wire blends with white gutters and house trim and many other light-colored backdrops. Create a professional quality Christmas light display this year when you hang OptiCore lights along your roof, around your trees, or anywhere around your home.