Waterproof Submersible Diamond Lights are a great accent to flower arrangements or home and party decorations. The LED light at the bottom of the piece shines in seven different colors in a rotating pattern. Made of hard, clear plastic, these lights are 100% waterproof and can be completely submerged underwater. Add them to a floral arrangement, centerpiece or a bowl of floating candles to add ambiance to your wedding or party. Batteries last 50-70 hours.