H-Alifun&reg; 12 PCS Waterproof LED Floating Tealight Smokeless LED Candle Wedding Holiday Christmas Xmas Party Decoration (White) Flameless, smokeless and long lasting, safe to use. No hot and dirty wax to deal with. Realistic light, It will shine when simply let it float in water.High quality. Main material: Plastic. CR2032 batteries included.The bottom twists off to replace battery. These candles are perfect for Holiday decorations, Luminary Bags, Weddings, Parties, Special Events. Tea light size: 1.5"(37mm) diameter,1.6"(40mm) high,Battery last time: 30-60 hours.These are standard sized tea lights so they fit in any votive cups or tea light holders.