6 Pack Battery Operated LED Fairy Lights Powered by 2 CR2032 batteries (included), the 7-foot-long miniature fairy lights come with 20 upgraded energy-saving LEDs, perfect for daily decoration and holiday decorations. Thin copper wire and small LED bulbs will add a sophisticated and cozy touch to your personal space Long Life Battery and Continuous Illumination The twinkle lights are pre-installed with long-life batteries that provide long endurance lighting for more than 72 hours. The high-quality batteries allow the fairy lamp to continuously emit warm light, making our daily life as wonderful as a fairy tale. Durable Material and Safe To Touch We insist on using high-quality materials for each of our mini string lights, since providing high-quality products to customers is the principle of our brand. Our Silver plated copper wire mini lights using high quality 3V low voltage insulated line, which makes it cool to touch and safe to use, the soft LED lights will not harm children s eyes. Wide and Diverse Applicated Scenarios Our LED fairy lights by battery operated can be used indoor and outdoor since the string lights are waterproof (Note: the battery case is not waterproof)