AGPTEK Indoor/Outdoor Garden 12 LED Aluminum Water Mist Maker Fogger Fountain Pond Fog Machine Atomizer Air Humidifier No heat or chemicals used. Easy to operate, put in the water and the voltage is 24V, then the mist appears. Ideal for indoor or outdoor fountains, water feature, and office use. With 12 LED (4 red + 4 yellow +4 blue) light, different color group LEDs are lighting up alternately. Mist Maker Size: 4.6 cm diameter, 4.3cm tall