Type-C USB Four Spray Humidifier Module DIY Humidifier Control Board Atomizer Drive Board Four Way Ultrasonic Drive Board.
 
The Four Spray Humidifier Module is a 5V USB-powered DIY kit featuring a control board and four 108KHz ultrasonic atomizers, designed for high-volume misting in, plant, or, small, space applications. It offers multiple spray modes (continuous, dynamic, indirect), features white atmosphere lighting, and is built on a 50x25mm PCB.