Product: 4Spray Humidifier Development Board with Control Circuit Board Why this product matters Produces a stable, ultrafine mist that humidifies and disperses liquid without soaking surfaces below, solving common problems of drippy or uneven atomizers. Lowpower, 5V operation and a builtin control circuit make it easy to integrate into DIY atomizers and plugandplay misting devices. Designed for reliability and repeatable performance in hobby, home, and light commercial applications. Key features and specifications Module type: 4spray humidifier development board with integrated control circuit board for DIY atomizer projects. Spray aperture: 800 ultradense spray apertures per module for consistent coverage. Output size: 4x5 um output design to produce a fine, even mist. Power: 5V driving voltage, 2W rated power for efficient, lowenergy operation. Performance: Stable waveform and conversion efficiency for reliable atomization across varied conditions. Compatibility: Works with USB humidifiers, aroma diffusers, scent machines, and other misting devices that accept this form factor and electrical input. Safety/design notes: Module requires water in the atomizer to activate spraying; control board and module housing are not waterproof. Practical benefits Cleaner operation: Fine 4x5 um droplets reduce surface wetting and minimize residue, making the module suitable for enclosed diffusers and device housings. Energy efficient: Lowvoltage, lowwattage design reduces power draw and heat, which helps prolong component life and simplifies power supply choices. Easy integration: Builtin control circuit board reduces the need for additional driver electronics when integrating into custom projects. Important usage and safety instructions The atomizer requires water to operate; do not power the module dry. Do not apply power unless the atomizer element is connected. Avoid using fast chargers or nonstandard USB power sources; use a stable 5V supply. The module housing and circuit board are not waterproof—protect connections and electronics from splashing or immersion. Typical applications DIY atomizer projects and prototype misting devices where a compact, controlled mist source is required. USB humidifiers and aroma diffusers that need a fine, nonwetting mist for home or office use. Scent machines and scentdispensing units for retail or hospitality environments that require consistent droplet size and low power consumption. What you get A 4spray humidifier module with builtin control circuit board and the specifications listed above for integration into compatible misting devices.