G40 Outdoor Globe String Lights - Outdoor Lighting Patio Party Tent String Lights - Pergola Gazebo Backyard Decor Novelty Lights, Inc. manufactures these durable and heavy duty commercial grade light sets which come with 100 candelabra base sockets spaced 12" apart on White 16 gauge SPT-2 wire. This listing is;for the string alone and bulbs are sold separately. These strings are perfect for an outdoor patio, special event, restuarant, and Christmas lighting decoration. The strings are not connectable end to end and you can only run each 100' string on one outlet. However, this string is great for permanent outdoor lighting applications and long runs up to 100'. Each string comes ready to plug in for your convenience. Each socket is made of PVC material to create a water tight seal around the globe Bulb for extra protection against weathering. 100 Sockets With 12" Spacing ;- 100' Long Max Wattage is 1250 Watts Not Connectable End to End SPT-2 16 Gauge White Wire 25 Watt Bulb Max Per Socket PVC Socket Forms Tight Water Resistant Seal UV Resistant For Outdoor Use General;Mounting Tips:;Best to install the string without the bulbs in the socket to lessen breakage. A guide wire (aircraft wire) is recommended to reduce stress of the string and provide a clean professional look. Use aircraft wire in accordance with a cable tie and a snap hook. Use a zip tie to attach the string wire to the aircraft wire. Make sure and screw in the bulbs squarely in order to make sure that no moisture can jeopardize the functionality of the string. Other than that enjoy our radiant and eye catching outdoor string light set. Your satisfaction is our #1 priority and if you have any issue at all, please contact us and we would be happy to assist.