Super easy to install: 20 fairy lights with 10 LEDs are made of 3.3 feet of flexible silver-plated copper wire, which can be easily bent and shaped. The mini battery box (2*0.87 inches) is easy to hide in your design works, perfect Birthday party, Halloween, Christmas, wedding or decorate your bedroom, children's room, dormitory, transparent umbrella, garland or design any other unique lighting project. Safe touch: It is powered by a low-voltage CR2032 battery, and the heat-insulated LED copper wire lamp will not overheat during use, and it is cool to the touch and safe to use. Long battery life: The mini light string battery is operated 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 in 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.