High-frequency oscillation, micrometer aperture, large atomization amount, fine mist particles, high rate, variety, timed shutdown. Two modes: press the switch for the first time is continuous mode: LED light is always on, always , 4 hours after the automatic shutdown protection. Press the switch for the second time is indirect mode: LED flashes, 10 seconds, stop spraying for 5 seconds, and so on, 12 hours after the automatic shutdown protection. Press the switch for the third time to turn off the machine. The white piezoelectric ceramic ring is the front , which is installed upward, All steel sheet is the suction on the back, installed downwards. The red wire is positive and the black wire is negative. Principle: Piezoelectric ceramics drive metal plate high-frequency oscillation, ultrasonic liquid atomization. Micrometer-fine water molecules atomize water throughmicropores and disperse it into the air. Application: DIY , plant humidification, landscaping atomization. The atomizing piece needs to be used together with the circuit board with the same frequency to achieve the perfectspray amount. Colour: Material:Electronic component Package Contents: 6set x Mist Maker Plate Only the above package content, other products are not included. Note: Light reflection 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.