3 High-Capacity LR44 Batteries: Each fairy lights are equipped with 3 pre-installed 180 mAh batteries, no need to buy extra, providing up to lasting 72 hours lighting. Perfect for decorating mason jars, vases, crafts, bottles, plants, ornaments, garland, wreath and more Great Value 30 Packs: Made of high quality 7 FT silver wire, flexible and durable, easily wrapped around anything. Feature 20 Led mini lights that emit a soft and 3000k warm glow, look like a wonderland, creating a cozy and romantic ambiance 3 Lighting Modes: Fairy twinkle lights offer: Fast Flashing, Slow Blinking and Constant Lighting. Each providing a distinct decorative effect and ambiance, meeting your various occasion needs. A push switch is designed on the side to turn On/Off and switch modes IP65 Waterproof and Safe to Use: Light string supports IP65 waterproof, can be submersible in water (Battery box is not waterproof). Powered by a safe 1.5V low voltage, and will not heat or short-circuit even after a long use, safe of touch and use Fantastic Decorative Lighting: Includes 30 Pack fairy lights, a screwdriver for replacing battery. Creating a magical, charming and soft atmosphere, ideal for weddings, birthday, bedroom, party, Christmas, Thanksgiving and other meaningful holiday decoration