Authoritative UL certificate, power supply with 7V low voltage, which is lower than the voltage safe for the human body for safe use, definitely no risk of electric shock. The LED beads are energy-saving and consume little, do not overheat after prolonged use, no risk of fire. This Christmas lighting is IP65 waterproof, withstands rain and snow and is perfect for outdoor use.PEMOTech Christmas lighting connectable: our meteor shower light with 15 tubes is 30 cm per tube, 540 lamp beads and total length 11.7 metres. The distance between the lamp tubes is 5.39 metres, which is longer than on the market and allows a lighting angle of 360. The Christmas lights can be connected in up to 3 sets. If the whole light does not light up when connecting multiple kits, please check whether the socket and plug are connected correctly.Dreamlike meteor shower lights: each bulb of the meteor shower lights gently turns on and off as the meteors pull across the sky. The sparkling and mysterious lights take you into dreamy spheres. Outdoor Christmas lights make the showers fall on your house or tree and lay a shimmering silver/blue/dusky veil over it. Its dazzling brilliance makes the quiet night a very special eye-catcher.Versatile use: the bright and warm meteor shower fairy lights are a great decoration for a variety of indoor and outdoor scenes, perfect for Halloween, Christmas, Thanksgiving, Valentine's Day, weddings, birthdays, parties and any other occasion worth celebrating. They are also great for decorating indoors and outdoors of the home, yards, lawns, parks and streets and are compatible with embellishment and lighting.Excellent customer service: If you have any questions or problems about our product, please feel free to contact us. Our customer service team will reply to you within 24 hours.