Bits and Pieces Home and Garden Lighting-3 Floating Light Up Flowers for Pond Landscape - Beautifully Sculpted Roses Turn On Automatically When in Water These beautifully sculpted roses are battery-powered candles in genuine candle wax. When in contact with water, the built-in LEDs automatically turn on and simulate the flickering light of candles. They will bring a warm ambiance to any enchanting occasion. Use again and again. Each rose measures 3-1/2" diameter x 2-1/4" deep.