Each set of G40 led string light contains 12 standard E12 sockets and 12 G40 globe bulbs. No need to spend extra money to buy replacement bulbs once they are broken. Providing 1 spare bulb for your replacement use, is convenient and user-friendly.G40 LED light string is more than 90% more energy efficient than an incandescent light bulb. Each LED bulb consumes only 0.6W power, much lower wattage will save more energy for your home. Service life of up to 30,000 hours reduces maintenance costs for frequent lamp replacement. Designed with end-to-end connections, just plug and play, you can connect at most 65 strands to cover a large area. Rating of IP 44, so the string lights could be used in your garden or another outdoor place when the weather is rainy or sunny. Ideal for outdoor and indoor decoration: patios, decks, weddings, parties, hotel, café, backyard. Enjoy the lovely nights and the romantic dinners with your family and friends.