Easy To Use and Install: Each Cork fairy light with an ON/OFF Switch, just Simply Switch on the Lights and then insert in the bottles. AbsHigh quality that provides enough brightness and long time of working life.A built-in light sensor ensure that it turns on at dusk and turn off by dawn automatically. Solar-Powered: Our solar bottle lights harness the power of the sun, featuring built-in solar panels that charge during the day and automatically turn on at dusk. No need for batteries or complicated wiring, these lights are energy-efficient and eco-friendly. Flexible Wire Easily Bended for DIY: High-quality thin copper wire is easy to bend and shape, you can design any DIY shape that you like. You can make full use of your Empty Bottles to DIY the beautiful garden decor, deck decor, patio decor, fence decor, Christmas Outdoor Decor, Halloween Decor, etc Multi-Set Pack: Each package includes 5 solar bottle lights, allowing you to decorate multiple areas or create a cohesive theme for your outdoor decor.Length of each piece: 1m, total number of LED chips: 10LEDs/each light.(NOT INCLUDE BOTTLE) Wide Applications: Compatible with most bottles-the cork has a universal size, suitable for beer bottles, glass bottles and soda bottles and other bottles, very suitable for creating a romantic ambience.