UL Certified Outdoor Christmas Lights: Strictly tested and meets the US requirements of string lights UL safety standards to ensure & maximize the safety. Whole set string lights including string wire, led lights and plug have been certified by UL. Pterfect outdoor indoor decorations for Christmas, Thanksgiving, Halloween, bar, restaurant, hotel, commercial building, shopping center,party, yard, balcony, garden, pergola, gazebo, especially for trees and eaves. Durable and Sturdy Design: Different from other C9 Christmas lights with weakly and very thin wires, they usually break apart easily when use in eaves or trees. We use the high quality and durable green wires. The strong construction makes it tough and sturdy, not easy to break apart and overheat after long hours of usage. They are strong enough to provide years of high quality lighting. We also provide 2 spare bulbs and 2 spare fuse for repair (basically no need to use). Connectable C9 Christmas Lights: Each Christmas light has an end-to-end connector, support max 44 sets end to end connected, freely conntected according to your demand. Enough to cover larger area. The green wire is the great choice for displaying lights on bushes or a wide range of other natural backgrounds. Hang these fairy lights along the roof, across a porch or fence, or wrap them around trees for your most exciting holiday light display ever Waterproof Outdoor Christmas Decorations: All of our led outdoor christmas lights are constructed with high quality material and designed to withstand rain or heat, so you can confidently leave them on display through summers and winters. Perfect for indoor & outdoor decorations. IP44 waterproof makes lights can be utilized both indoor and outdoor without worry of rainy weather.(Please be attention: the plug is not waterproof, please keep the plug away from water). Widely Used Christmas Tree Lights: Very easy to use, unroll the Christmas string lights then mount it at the place where you want to decorate, do it by yourself and enjoy the fun Create instant ambiance inside or outside your home with our Christmas lights. The string lights quickly creates a relaxing, memorable festive atmosphereperfect for everyday decor or social gatherings like a Christmas party,outdoor wedding, summer evening soiree, or casual backyard barbecue. Customer Satisfactions: Providing a satisfaction experience is our main priority to our customers. Feel free to message us through contact sellers if products don't meet your expectations. The celebrations start at our unique christmas decorations