Feature These Multi Color Lotus LED Candle Floating LED Lights light up in contact with the water. Just dry them off and use again. They adopt replaceable batteries (CR2032) and are already installed. These batteries are replaceable! These reusable, floating LED lights in water, are waterproof and flameless and are thus perfect for lighting up vases, bowls, or any water filled containers. They can turn a boring bowl into a beautiful and exciting centerpiece. These Floating Candle lights are often used for event design & make great party flavours as well. Specification Main material: Plastic Waterproof LED Lights, can be put in water or drink, floating Water sensor switch, when put in liquid, it turned on. When dry, turned off. Power supply: 2032*1(replaceable button cell battery); working time: up to 48hours. Package includes: - 2 PC lOTUS Floating Tea lights (batteries included