The Solar firework lights are made of 35 high-quality copper wires,105 LED bulbs. Built-in 1.2V/600mAh AAA Ni-MH rechargeable battery. Standard sunshine charging 4-6 hours at daytime, working 6-8 hours at night after fully charged. These copper wires are flexible, DIY your favorite shapes such as flowers, trees, fireworks, Ferris wheels, hearts, spirals, spheres, etc. Package Includes: 2 x Firework Solar LED Lights