The multicolor floating glow lily is waterproof so it can be used in pools, ponds, water features or where ever you want to add decorative light. The glow lily can glow white, blue, amber or color change through all three colors by a touch of a button. The glow lily dimensions are 5.5 inches by 1.75 inches. The glow lily uses 3 AAA batteries (not included) and will last up to 36 hours on one set of batteries. Please note in the YouTube video the glow lily appears to be flickering but it really does not flicker.