The Fog Mist Maker creates the illusion of a misty fog when placed in regular tap water. Use to enhance your table displays and create an eerie atmosphere. Multi color LED mister changes from red to yellow to blue. Works best in shallow water, 1.5" to 2" of water is best, although it will work in up to 4" of water. Fog Mist Maker will ultrasonically vaporize about 1 quart of water in 4 to 5 hours. Fog Mister Maker includes IV and UL approved adaptor, fogger unit and splash guard.