Super easy to install: 20 fairy lights with 10 LEDs are made of 3.3 feet flexible silver-plated copper wire, which can be easily bent and shaped. The small battery box (2 * 0.87 inches) is easy to hide in your design works, perfect for birthday party, Halloween, Christmas, wedding or decorating your bedroom, children's room, dormitory, transparent umbrella, garland or designing any other unique lighting project. Safe to touch: It is powered by a low-voltage CR2032 battery, and the heat-insulating LED copper wire lamp will not overheat during use, and it is cool to the touch and safe to use. Long battery life: The small string light battery is powered by a switch, powered by 2 * CR2032 batteries (not included), providing more than 72 hours of lighting, and the battery can be easily replaced. IP65 Waterproof: The fairy lamp is waterproof (not the battery box), and the silver-plated copper wire part can be put into the water to achieve an amazing atmosphere effect. Fully sealed so that the firefly lamp can be used indoors and outdoors.