Using LED instead of tungsten bulbs in our S14 string lights extends their lifespan. Efficient LED bulbs save over 90% energy. Clear plastic instead of glass protects you from hazardous debris. Designed with sealed sockets for safe use in all weathers. [The patio string lights come with 20 PET bulbs and are 10 meters long in total. The specially designed double-ring hanging hook provides optimal support. [Safer and More Convenient] The upgraded 12V power adapter design protects you and your family from high voltage and danger. [Warm Decor] These outdoor string lights will create a vintage and romantic atmosphere in your space, making your garden more comfortable and welcoming. The string lights emit natural warm white light and are perfect for indoor/outdoor, patio, garden, bistro, cafe, festoon lighting, wedding, party, Christmas and all kinds of occasions or events.