Mesh Metal Jack 'O Lanterns. Each boxed set of string lights includes a 9.5-foot string of lights and 10 lanterns spaced 10 inches apart. Great for indoor or dry outdoor use, our string lights provide a simple yet creative way to add ambience to any setting. Outdoors these lights are great for decorating patios and gazebos, party tents, etc. Indoors they provide wonderful accent lighting.