efficient 5V USB mist maker driver board: low driving voltage, low power consumption, stable waveform, and conversion efficiency. Works with standard 5V USB power sources to ensure performance and energysaving operation. atomization plate: round ring atomizer plate that delivers a middle spray with an ultrafine 5 um spray aperture. The plate features 740 ultradense spray holes for efficient and precise atomization. Longlasting design: atomizing sheet is coated with an oxidationresistant silver layer, providing long lifespan and protecting the coating process. This design helps ensure longevity of the atomizer plate. Environmentally friendly components: the humidifier driver board uses environmentally friendly electronic components, promoting sustainability and reducing environmental impact. Use scenarios Desk or smallroom humidification: connect to a USB power source to maintain comfortable humidity in compact spaces, suitable for offices, workstations, or desks. Terrariums and plant propagation: integrated into small humidification setups to create stable microclimates for terrariums, seed germination boxes, or propagation trays. DIY mist maker upgrades: or upgrade existing mist maker driver boards to improve efficiency, consistency, and lifespan in custom humidification projects.