This Feit Electric UL Wet Location approved string light set is designed for indoor and outdoor use, with sockets that are designed to create a waterproof seal around bulb bases. Each set consist of a 48 ft. black heavy-duty 16/2 SJTW Cord, 24 sockets spaced 2 ft. apart and thirty 11-Watt incandescent bulbs (6 extra). The set can be used as a single strand or you can connect up to 4 sets (of 11-Watt bulbs) to create an overhead illuminated canopy. Sockets hang approximately 4 in. from the cord and are also compatible with CFL or LED bulbs. These are ideal for patios, porches, walkways, restaurants and anywhere decorative and accent light is desired. When using just a single strand, up to a 60-Watt bulb can be used for brighter illumination.