About this item 【QUALITY ASSURANCE】Each product of ER CHEN has been through rigorous testing before shipment, when you receive the product if you find any problems, we will unconditionally offer you a free replacement. 【Consistent Brightness】300 super bright red color LED string lights on 99 feet（30 meters） long ultra thin copper wire with 4 Inches distance between LED bulbs, and without voltage drop, the brightness is steady and consistent. Adapter cable length 4.9 feet (1.5 meters). 【Flexible, Durable & Waterproof】Made from high quality 3-Strands copper wires, this fairy light is durable enough to experiment with any shapes as you like. The copper wire parts of the string lights have IP65 waterproof level which is perfect for both indoor and outdoor decorations.(Warm Tip: The power adapter is non waterproof,it should be covered if used in rainy days) 【Safe to Touch】String lights are enameled copper wire and low current ensures that the copper wire is insulated and won't be overheat. After many hours of continuous work, you can still touch it safely. 【Certification and Warranty】High-safety power adapter is guaranteed with UL/FCC certification, and the string lights possess FCC and CE certificates and meet environmentally-friendly RoHS, and we provide you with 12 months’ warranty, 60 days Money Guarantee, 24hrs Customer Service. If you have any problem with this item, please contact us directly, and we'll provide help for you.