C9 bulbs are the heart of the Novelty Lights 250 Foot C9 Christmas Stringer Bulk Reel, providing a warm, inviting ambiance not just for the holiday season, but also for illuminating your outdoor spaces throughout the year. LED C9 lighting solution, with its white wire and 15-inch spacing, blends seamlessly into your garden or patio, offering a subtle yet effective lighting solution. Experience the versatility of Christmas lights commercial grade with the C9 - 250 Foot spool, which comes with 500 total C9/E17 intermediate sockets, making it an excellent choice for both commercial and residential applications. Commercial string lights, like this one, offer the flexibility to choose the right lighting solution for your needs, with a maximum run of 137 sockets with 7 Watt incicandescent bulbs, or 384 sockets with 1 Watt LED bulbs. Outdoor string lights 100+ ft in length, like this one, offer ease of installation with the general mounting tips provided. For larger spaces, consider our outdoor string lights 200ft option, which can be installed using 'aircraft wire' as a support cable for a clean, professional look. Christmas light reels, such as this one, can be mounted along the roofline in accordance with our all in all clips (ASIN B004TNDB2I) to mount under shingles or on gutters for rooflines. Light strands like these ensure a straight, secure line along your home, keeping your lights in place and looking great. Rest assured that your satisfaction is our number one priority with our heavy duty Christmas lights outdoor. If you encounter any questions or issues with our commercial outdoor string lights, our customer service is ready to assist.