Southwire 7549SW Temporary Lighting, 100-Foot Cord with 10Sockets and Plastic Lamp Guards, 3-Prong Plugs (5-15P). Durable, indoor/outdoorlighting systems accommodate Standard (A-23) bulbs up to 150 Watts. TheyFeature a lamp socket every 10 feet. This lighting system is our most ruggedand heavy-duty. It features a 12/3 AWG cord. The cable is made in yellow forhigh visibility and rated to 300 volts. The Plug is rated to 15 Amps and is thestandard shape (5-15R). It also has an outlet (receptacle) on the end tointerconnect more than one set. The plastic lamp guards snap on easily. Thesehave many uses: For concerts, parties, outdoor events, construction lightingand commercial lighting. Many people call them string lights.