Intelligent Control: With a built-in low water level sensor, if the water level becomes too low, the device can be automatically turn off. The mist maker will slightly heat up when working, but it won’t become too high. Halloween Must-have: It is likely to the horror witch smoking pot which often appears in fairy tales, you can use it to create magical smoke. It is also perfect for Halloween yard decor, patio, porch, garden and outdoor decorations, etc. Multi-scene use: Great for Haunted Houses, Halloween displays and as a theater prop. Safe Use: The working voltage of the device is a safe DC 24V and it needs to be used with an adapter. It is convenient to connect and adopts an international connector.