Coleman Cable 07538 50-Foot Indoor/Outdoor Light String, 5-Lights and Metal Guards. 50-foot extension cord with 5 lamp holders and light sockets. Evenly spaced sockets every 10-feet, accepts bulbs up to 150-watts each, A23 or larger. 15A Cord-O-Lite temporary lighting string with plastic guard, commonly used with new construction and jobsites. Suitable for both indoor and outdoor lighting systems, Meets OSHA, NEC Requirements, UL Listed. Temporary indoor and outdoor illumination for attics, garages, unfinished construction, and more. Includes attachment plug cap and cord connector. Lampholder spacing is 10-feet, starting 9-feet from the plug. Maximum string wattage of 1875-watts. 12/3-gauge SJTW power cord is durable and withstands moisture, abrasion, chemicals and prolonged exposure to UV rays. Industry approvals: UL, NEC compliant, meets OSHA requirements. The Coleman Cable (R) brand is a registered trademark of Coleman Cable Inc.