Shop red and green string light and bulb sets for the perfect outdoor Christmas Lights! Multi color and white string lighting are also popular holiday light choices. From outdoor string light to indoor decor string lights, choose from these popular Christmas string light sets. Check out our Commercial Medium String Lights for the full selection of our outdoor string light set (or opt to build your own and pick your cord style and bulb colors). For cost-effective indoor and outdoor string lights, our C9 String Lights and C7 String Lights offer a variety of choices.