Features: Solar Powered: No Battery Require, a solar panel on the top, 100% Solar Powered. The best choice for environmentalists, generally charge in the sun 5-6h will light up 6-8h, slide the switch to the "ON" position, long lasting LED bulbs, little heat. High Quality: Enough copper wires length to decorate any you want. All copper wires are bendable and flexible too, you can make any shape you like or warp on bottle easily. Size: Fits for wine bottles, glass bottles, soda bottles, beer bottles and many other kinds of bottles, the cork bottom: 1 in (26 mm) in diameter and the cork top: 3⁄5 in (15 mm) in diameter. Waterproof: The wire lights are waterproof, so it will be absolutely safe if you want some water in the bottle.(The cork is not wateproof.). Very suitable for garden decor, deck decor, patio decor, fence decor, Christmas Decor, Halloween Decor. Specifications: Material: Plastic + copper wire Battery: AAA, 80mA, 1.2V Power Source: Solar Solar panels: 2V 20MA String Length: 2m/6.5ft Type of Bulb: LED Total LED Bulbs Per Line: 20LED Distance between per LED bulb: 10cm/ 3.9inch Color: Multicolor, White, Warm White (Steady), Blue, Green, Pink, Red Charge: Charge for about 5-6 hours, lasting up to 6-8hours Package includes: 6pcs x Wine Bottle Lights Please Notes: Please keep the cork away from water only the copper wire led is waterproof. Water can get inside the bottle. It is advisable to be kept away from naked flames, liquids and little hands. As the charging effect of the solar panel is depend on the sunlight, the LED light time & brightness are affected by weather, seasons, places, etc. Keep the switch on to get the solar panel charged under the sunlight(Will not charge if you put the switch off). Keep the surface of solar panels clean, the dust will affect the charging efficient.