Osteplus Wine Bottle Lights The lovely LED Lights is very Low Heat Generating makes it safe to touch. The silver coated copper wire fairy lights is Waterproof, you can immerse the strand in water(the battery pack is NOT waterproof). It is powred by 3pcs LR44 batteries which can last about 4 days. The cork lights is tool-free to replace the extra batteries.Using Osteplus wine cork string lights to DIY your unique decorative bottle lights, decorating your house with beautiful night lights, ideal for table, room, patio, wedding, party, Christmas, New Year and other festival decoration. Perfect gift for your kids, friends and families! Feature: String Length: 2m / 6.6ft LED Bulbs Per Strand: 20LED Cork Diameter: 0.6-0.9in Cork Length: 1.89in Distance between Per LED Bulb: 10cm / 4inch Material: Silver Coated Copper Wire Wattage: 0.5 Watts