High Quality & Safe LED fairy string lights are made of high quality 2M long flexible copper wire, which makes it tough and sturdy. They use safe low voltage, low consumption and no overheat problems, it's safe to touch. Flexible DIY 2M micro lights with flexible and extra thin but sturdily built copper wires. Thy can be easily bend, twist and mould into any shapes that you desire. These mini fairy lights also lightweight and portable, you can easily hide them into your design works and create romantic atmosphere. Battery Operated LED firefly light is powered by 2x CR2032 lithium cells (battery included). The batteries can be easily replaced. 12 Packs micro lights have battery box with ON/OFF switch for easy controlling and hiding. The batteries can work about 30 hours. Waterproof These starry fairy lights are IP65 waterproof (except the battery case part). The copper wire part can be put into water or other liquid to make amazing romantic atmosphere effects. You can use them both indoor and outdoor. Widely Used The package comes with 12 packs LED fairy string lights. The flexible copper wire lights are perfect for table, fireplace, wreaths, mason jars, Christmas tree, Wedding, holiday, window, flowers, cake, winter wonderland theme party decoration.