The Hampton Bay Incandescent String Lights combine the beauty of vintage, Edison-style bulbs with the latest in commercial grade string lights. The soft, warm light will add a welcoming glow to any location. This light set includes 12 incandescent glass light bulbs on a 24 ft. string and its Cutting Edge technology means you can link up to 240 ft. for a total of 10 strings using 1 electrical outlet. These commercial-grade lights are equipped with weather-resistant bulbs and have been designed for outdoor use, but will also add a festive atmosphere to your indoor locations. Each set is equipped with 6 spare incandescent bulbs for your convenience. These string lights have been tested to ensure your safety and are backed by a limited incandescent bulb warranty.