Diffusers separate water and essential oils into molecules small enough to evaporate in the airUnlike lamps, steam generators use ultrasonic waves so they do not generate heat. No more worrying about the risk of burns, wax spills or other accidents.The machine turns off automatically when the water runs out Diffusers all have an automatic power off feature when there is no more water in the water tank. This automatic shutdown function is very convenient, increasing safety. This saves you from having to keep an eye on the machine while it works.The machine has a lamp to use instead of a night light Many diffusers have colored lights that help stimulate relaxation levels, boosting mood. The LED light has soft led light.Steam essential oil diffuser uses modern ultrasonic wave technology. The machine operates at a frequency of 2.4 million Hz / sec creating negative ions to help purify the air. Negative ions can help remove bacteria, germs and dust from the air.Plug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so onColour:blackMaterial: ABSPackage Contents:1 x Aromatherapy humidifierOnly 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.