[Effective water level] The effective water level of the ultrasonic waver is 3.5-8 cm (completely immersed in water), but it should not be too low. Keep the water depth at least 4.5 cm to ensure that the spray filter works properly (because the water will be reduced during the atomization process). The recommended water level is about 7 cm[Smart Shutdown]Safety always comes first. The pond sprayer is equipped with a sensor. Equipped with a smart sensor, once the water level is below 1.38 inches (about 3.5 cm), the power will be automatically turned off. The power supply of the atomizer has passed UL certification and is highly safe, so there is no need to worry about potential hazards.[Increase the atmosphere] The fog machine can produce a large amount of spray within one hour, such as the amount of gas dissolved greater than equal 300ml/H, and the water splash height is about 3.13 inches. The large amount of smoke will create a magical atmosphere, which is very suitable for Halloween and other festivals.[Waterproof design sprayer] The ultrasonic sprayer is waterproof, so there is no need to worry about scratching the fountain sprayer due to water ingress. The mini sprayer has a detachable waterproof buckle to prevent water from overflowing. We strongly recommend that this ultrasonic sprayer can not work continuously for more than 10 hours.[Widely used] Jogging machine can add a lot of spray to your pond or water tank, and use ultrasonic technology to filter bad odors. Air humidifiers and atomizers are suitable for your home. It is very suitable for indoor or outdoor fountains, water fields and offices. You can put the fountain sprayer in ponds, Iwatas, fish tanks, vases, water tanks, etc.Material:Aluminum alloycolour:SilverPackage Contents:1 x Mist Maker with LED LightOnly the above package content, other products are not included.Note: Light shooting 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.