[Water Shortage Protection]Water level sensor. Long service life, effectively prevent dry burning. Recommended water depth: 1.6-3 inch. [Parameters]Input voltage: AC100-240v; Output voltage: DC24v; Power: 24W.Application: pond, fountain, supermarket, workshop, etc. [Mute and energy saving]Mute working and very low energy. Consumes only 0.57 kW per head per day. Plug Type: US Plug,it applies to Canada, India, Japan, Mexico, Thailand, Taiwan, the United States, the Philippines and so on. Parameters Input voltage: AC100-240v Output voltage: DC24v Maximum fog-making efficiency: 20 oz/h/head Colour:Black + Silver Material:Aluminum alloy Size:46x23.8mm Best water depth: 1.6-3 inch Package Contents: 4* atomizing heads 1* adapter(With US Plug) [Notice]The principle of mist maker is ultrasonic vibration, so there will be splashes when using. Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.