Southwire 7145SW 100-Foot 150-Watt 10-Socket Incandescent String Light provides temporary light for work zones and large spaces. There are (10) medium based sockets that use maximum 150-watt incandescent bulbs. These sockets are spaced 10-feet apart and have a total capacity of 1,500-watts. Each socket features a plastic protective bulb cage (bulbs not included). The power cord is 100-feet long and yellow for improved visibility. The cord plug is polarized for your safety. The snap-on plastic guards are easy to open and help protect your bulbs from damage. The cord is 100-feet long and yellow for improved visibility. This product is UL listed, NEC compliant and meets OSHA requirements.