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16mm Ultrasonic Humidifier Atomizer Disc Piezoelectric Mist Maker Transducer Module 108KHz
[Ultrasonic Sensor] The 16mm Ultrasonic Humidifier Atomization Module is a high-efficiency piezoelectric transducer designed for mist generation and humidification applications. It operates using ultrasonic vibration technology to convert water into ultra-fine mist particles quickly and efficiently. In addition, the module works on the principle of ultrasonic cavitation, where high-frequency sound waves generate rapid compression and rarefaction inside the water. As a result, microscopic water droplets are released into the air as cool mist. Because of its 108KHz resonant frequency, the atomizer produces fine and uniform fog particles while maintaining low noise operation. Furthermore, the compact 16mm design allows easy integration into humidifiers, aroma diffusers, medical atomizers, and DIY mist generation systems. The atomization disc is built using durable piezoelectric material for long operational life and stable performance. Moreover, the module consumes very little power while providing efficient mist output. ⚠️ Note: This atomizer module requires a compatible ultrasonic driver board for operation. The driver circuit is not included in the package and must be purchased separately. This ultrasonic humidifier module is widely used in humidifiers, beauty care devices, medical atomization equipment, aroma diffusers, and DIY electronics projects. 🔹 Key Features 16mm ultrasonic atomizer disc High-frequency 108KHz operation Fine and uniform mist generation Low noise operation Small fog particle output Long operational life High stability performance Low power consumption Suitable for humidifier and mist maker projects 🔹 Technical Specifications Product Type: Ultrasonic Atomizer Transducer Module Atomizer Diameter: 16mm Operating Voltage: DC 3.7V –5V Resonant Frequency: 108KHz Resonant Impedance: < 2 Ohms Coupling Factor: > 52% Electrostatic Capacity: 3000pF Spray Quantity: > 110mL/h Operation Type: Ultrasonic Piezoelectric Atomization Fog Particle Type: Ultra-Fine Mist Noise Level: Low Noise Operation Material: Piezoelectric Ceramic + Metal 🔹 Working Principle The ultrasonic atomizer uses a piezoelectric transducer immersed in water. When driven at high frequency, the transducer creates rapid mechanical oscillations that generate cavitation bubbles and surface waves. Consequently, microscopic water droplets are released into the air as cool mist with minimal energy consumption. 🔹 Applications This ultrasonic atomizer module is suitable for many applications, including: Humidifiers Mist makers Aroma diffusers Medical atomizers Facial beauty equipment DIY humidification projects Decorative fog systems 🔹 Package Includes 1 × 16mm Ultrasonic Humidifier Atomization Sensor Module

4 Series 40A 18650 Lithium Battery Protection Board 14.8V 16.8V with Balance for Drill Motor Lipo Cell Module 4S 40A
[Lithium Battery Protection Board] The 4 Series 40A 18650 Lithium Battery Protection Board 14.8V 16.8V with Balance for Drill Motor Lipo Cell Module comes with recovery function – AUTO Recovery and Integrated 10 low load resistance MOS tube. It provides a continuous discharge of 40A, 100mA balanced current, for electric drill/sprayer/LED lights/low power inverter. (If the cooling environment is not good, please reduce the load current use). The Scope of Nominal voltage of 3.6V, 3.7V lithium battery (including 18650, 26650, a polymer lithium battery) where Charging voltage can be range between 16.8V to 18.1V The board operates smoothly with Continuous charge current of (upper limit): 20A. The balanced version is suitable for starting current below 80A, power 135W below the drill (with balance). The Board which can be easily installed in a compact size or on battery bundle itself. Note: The Successful start of the drill requires a three 15C-20C power battery, or six 10C-15C power battery (ordinary 18650 cannot start the drill!!). Strictly according to map wiring 0V, 4.2V, 8.4V, 12.6V, 16.8V, do not deliberately short circuit. When the load of the brush motor is used, try to connect a non-polar capacitor (withstand voltage above25V, capacity 10uF-100uF) to the motor’s positive and negative terminals to prevent the reverse spike from the motor. Break the MOS tube. 4 groups of batteries in series, please ensure that the voltage of each group of batteries, if not the same, please fill each battery separately and then use it in series. The Discharge test, the voltage drop faster battery that group is a poor battery. Features: 4 string 16.8V 40A lithium battery protection board (comes with recovery function-AUTO Recovery). Scope: Nominal voltage of 3.6V, 3.7V lithium battery (including 18650,26650, a polymer lithium battery). Product weight: 9.3g (standard / enhanced version), 10.3g (balanced version). Charging voltage: 16.8V – 18.1V. Continuous discharge current (upper limit): 40A (if the cooling environment is not good, please reduce the load current use). Continuous charge current (upper limit): 20A. Equalization version: suitable for starting current below 80A, power 135W below the drill. Package Includes: 1 x 4 Series 40A 18650 Lithium Battery Protection Board.

80W High Pressure Mini Diaphragm Water Pump 12v Self Priming 3.1 LPM 100 psi
[DC Water Pump] Overview of this 80W high pressure mini water pump 12v self priming 3.1 lpm Introducing 80W High Pressure mini water pump 12v Self Priming 3.1 LPM 100 psi at best price. It is specially designed for powerful performance. This 80W high pressure mini water pump deliver stable and reliable water flow. This mini diaphragm water pump is perfect for a variety of device. Its compact design ensure easy installation and operation in small spaces. This 12v self-priming small water pump offer convenience and efficiency for everyday use. With a flow rate of 3.1 LPM and 100 psi pressure, it fulfill demanding need of water flow. This 3.1 LPM 100 psi small water pump ensure high performance and durability. Its robust construction make it perfect for both residential and commercial purposes. Experience the benefits of the mini diaphragm water pump in various setting. This 80W high pressure mini water pump is perfect for garden irrigation and RV system. Its self priming feature allow for smooth operation. Features High Pressure Output: This 80W High Pressure mini water pump delivers a powerful 100 psi for efficient water delivery. Which make it perfect for applications who need strong water flow. Self-Priming Capability: Its self priming design allow for automatic operation after initial setup. It also ensure regular water flow without manual intervention. Compact and Efficient: 80W motor provides robust performance in a compact size. Perfect for limited spaces while maintaining high efficiency. Durable Construction: This 12v Self Priming small water pump is built with durable materials to withstand harsh conditions. Designed for long-lasting use in various environments. Versatile Use: It is also a perfect choice for multiple use including RVs, boats, and agricultural use. Can handle a variety of fluids beyond just water. Specification Specification Description Power 80W Voltage 12V DC Flow Rate 3.1 liters per minute (LPM) Pressure 100 psi Self-Priming Yes, self-priming Diaphragm Type Mini diaphragm Material Corrosion-resistant materials Motor Type Permanent magnet Noise Level Low (less than 70 dB) Temperature Range Suitable for temperatures from 0°C to 60°C Protection Thermal overload protection Inlet/Outlet Ports Threaded or barbed connections Applications Suitable for water transfer, spraying, and misting Dimensions Small Certifications CE, RoHS Package Includes: 1x 80W High Pressure Mini Diaphragm Water Pump 12v Self Priming 3.1 LPM 100 psi

3 Series 20A 18650 Lithium Battery Protection Board 11.1V 12V 12.6V Good Quality
[Lithium Battery Protection Board] 3S 20A 18650 Lithium Battery Protection Board with Balance – 11.1V/12.6V The 3 Series 20A 18650 Lithium Battery Protection Board is designed for building and protecting 3S lithium-ion battery packs using 3.6V/3.7V cells such as 18650, 26650, and compatible lithium-polymer cells. It features automatic recovery, balanced charging, and 20A continuous charge/discharge capability. The board uses 10 low-resistance MOSFETs and provides approximately 100mA balancing current. ⭐ Key Features 3S lithium-ion battery protection board Suitable for 11.1V nominal / 12.6V fully charged battery packs Supports 3.6V/3.7V lithium-ion cells Compatible with 18650, 26650 and compatible Li-ion/Li-Po cells 20A maximum continuous discharge current 20A maximum continuous charge current Built-in 100mA balance function Automatic recovery after protection operation Integrated 10 low-resistance MOSFETs Suitable for compact DIY battery-pack construction Designed for applications such as drills, sprayers, LED lights and low-power inverters 📋 Technical Specifications Product Type: 3S Lithium Battery Protection Board / BMS Battery Configuration: 3 cells in series (3S) Compatible Battery: 3.6V/3.7V Li-ion cells Battery Pack Voltage: 11.1V nominal Full Charge Voltage: 12.6V Continuous Discharge Current: Up to 20A Continuous Charge Current: Up to 20A Balance Current: Approximately 100mA Balance Function: Yes Recovery Function: Automatic recovery MOSFET: 10 low-resistance MOS tubes Charging Voltage: 12.6V for the completed 3S pack Board Size: Approximately 46 × 60 × 3.4mm Compatible Cells: 18650, 26650 and compatible lithium-polymer cells 🔧 Applications 3S 18650 battery packs DIY rechargeable battery packs Electric drills Battery-powered sprayers LED lighting systems Low-power DC inverters Portable electronic projects Robotics and DIY power systems 🛠️ Wiring The balance connection points should be connected in the correct sequence according to the board markings: 0V → 4.2V → 8.4V → 12.6V Do not short-circuit the terminals or connect the cells incorrectly. ⚠️ Important Notes The 20A rating is the maximum continuous rating; actual usable current depends on cooling, wiring, MOSFET temperature and battery capability. For electric-drill applications, high-current cells are required. Ordinary low-current 18650 cells may not be capable of supplying the required starting current. Sources specify high-C-rate cells for drill applications. If cooling is insufficient, reduce the load current. For brushed DC motors, a suitable suppression capacitor may be used across the motor terminals to reduce voltage spikes, as recommended by the supplied product instructions. Cells used in the same 3S pack should be properly matched and have similar voltage and condition. This is a protection/balancing board, not a standalone 12.6V charger. Use an appropriate 12.6V lithium-ion charger. Connect the battery and balance wires exactly according to the PCB markings. 📦 Package Includes 1 × 3S 20A 18650 Lithium Battery Protection Board with Balance

DC5V Humidifier USB Spray Module DIY Incubation Experiment Equipm 108KHz(mist maker)
[Ultrasonic Sensor] Description This DC Ultrasonic Humidifiers Power Circuit Board with Atomizing Chip Moisture Film Humidification atomization machine consists of an atomization plate tablet with a diameter of 20mm. This Ultrasonic Humidifier Piezoelectric Transmitter module works on the principle of cavitation produced by sound waves. Just provide the DC 3V to 5V power supply it will turn into a mini ultrasonic atomizer. As sound waves contain compression and rarefaction. Due to extremely rapid movement, water droplets can no longer sustain their liquid state and get converted into vapor immediately. This vibration is produced by a piezoelectric filament. Tags, USB Humidifier Atomization Driver Board PCB Circuit Board 5V Spray Incubation, Tags, OEM/ODM Available Mini Humidifier USB spray module humidifier pcb circuit board for DIY kit Incubation Experiment Equipment, USB Humidifier Atomization Driver Board PCB Circuit Board 5V Spray Incubation, 5V DIY Ultrasonic Piezoelectric Humidifier Moisture Atomizing Chip Mist maker circuit board. Features Come with a driver Power-ON trigger work 108KHz high-frequency oscillator Micron level aperture The glazed surface of the atomized sheet Features/Specs: Product Name: 108KHz 20mm USB Humidifier Work Voltage: DC 4.5V~5.0V Work Power:2W Work Frequency:108KHz(+/-3KHz) Power Type: Female USB Socket Diameter without rubber ring:16mm Diameter with rubber ring:20mm Spray Diameter:5um Spray Hole:740 holes Spray speed:50ml/h Work Temperature:0℃ ~ 85℃ Work Humidity:10%~90%RH Driver Size:35*19*15mm Length: 35 mm Width: 19 mm Height: 15 mm Weight: 10 gm Application: Humidifier | mist maker Beauty care for facial massager Medical liquid atomizing Equipment Package Includes: 1pc x Humidifier Driver Bord 1pc x 16mm Atomizer Plate 1pc x Cotton Stick Stand 1pc x Cotton Stick

4S 30A 18650 Lithium Battery Protection Board 14.8V 16V with Cable
[Lithium Battery Protection Board] 4 Series 30A 18650 Lithium Battery Protection Board 14.8V 16V with Cable, a Balance Board for Drill Motor Lipo Cell Module comes with recovery function-AUTO Recovery and Integrated 10 low load resistance MOS tube. It provides continuous discharge of 30A, Balanced current, for electric drill/sprayer/LED lights/low power inverter. (if the cooling environment is not good, please reduce the load current use) The Scope of Nominal voltage of 3.6V, 3.7V lithium battery (including 18650,26650, a polymer lithium battery) where Charging voltage can be range between 16.8V to 18.1V The board operates smoothly with Continuous charge current of (upper limit): 20A. The balanced version is suitable for starting current below 80A, power 135W below the drill (with balance) The Board comes in a size of approx. 46 x 60 x 3.4 mm which can be easily installed in a compact size or on battery bundle itself. You can check our others BMS. Click here Note: The Successful start of the drill requires three 15C-20C power battery, or six 10C-15C power battery (ordinary 18650 cannot start the drill!!) Strictly according to map wiring 0V, 4.2V, 8.4V, 12.6V, 16.8V, do not deliberately short circuit. When the load of the brush motor is used, try to connect a non-polar capacitor (withstand voltage above25V, capacity 10uF-100uF) to the motor’s positive and negative terminals to prevent the reverse spike from the motor. Break the MOS tube. 4 groups of batteries in series, please ensure that the voltage of each group of batteries, if not the same, please fill each battery separately and then use in series. The Discharge test, the voltage drop faster battery that group is a poor battery. Features: Overcharge protection, Over-discharge protection function, short circuit protection function, Overcurrent protection function, band balance. Package included: 1 x 4 Series 30A 18650 Lithium Battery Protection Board 1 x Battery Connecting Cable
Out of stock3S 60A Lithium Battery Charger BMS 18650 Protection Module Circuit
[Lithium Battery Protection Board] Lithium-Ion Battery Packs need to be Balanced Charged and protected from Over Charge and Over-Discharge. This ensures the safety of the circuit and gives optimum battery life preserving the original capacity through use. You can use this Battery Management System(BMS) to ensure these conditions. It also offers short circuit protection. If you are using a 3S Lithium Battery in your project, you can also use this BMS Module to protect it from short circuits in the circuit. In the event of a short circuit, the BMS will cut power to the battery and restart. The 3 Series 60A 18650 Lithium Battery Protection Board 11.1V 12.6V with Balance for Drill Motor Lipo Cell Module comes with recovery function-AUTO Recovery and Integrated 10 low load resistance MOS tube. It provides a continuous discharge of 60A, 100mA balanced current, for electric drill/sprayer/LED lights/low power inverter. (if the cooling environment is not good, please reduce the load current use). The Scope of Nominal voltage of 3.6V, 3.7V lithium battery (including 18650,26650, a polymer lithium battery) where Charging voltage can be range between 16.8V to 18.1V The board operates smoothly with Continuous charge current of (upper limit): 20A. The balanced version is suitable for starting current below 80A, power 135W below the drill (with balance). The Board comes in a size of approx. 46 x 60 x 3.4 mm which can be easily installed in a compact size or on the battery bundle itself. Features: 3S 11.1V 12.6V 60A 18650 lithium battery protection board (comes with recovery function-AUTO Recovery). Application: Nominal voltage of 3.6V, 3.7V lithium battery (including 18650.26650, a polymer lithium battery). Continuous discharge current (upper limit): 60A (if the cooling environment is not good, please reduce the load current use). Continuous charge current (upper limit): 20A. Suitable for the drills with starting current below 80A, power 135W below. Note: The Successful start of the drill requires three 15C-20C power battery, or six 10C-15C power batteries (ordinary 18650 cannot start the drill!!). Strictly according to map wiring 0V, 4.2V, 8.4V, 12.6V, 16.8V, do not deliberately short circuit. When the load of the brush motor is used, try to connect a non-polar capacitor (withstand voltage above25V, capacity 10uF-100uF) to the motor’s positive and negative terminals to prevent the reverse spike from the motor. Break the MOS tube. 3 groups of batteries in series, please ensure that the voltage of each group of batteries, if not the same, please fill each battery separately and then use it in series. In the Discharge test, the voltage drops faster battery that group is a poor battery. Package Includes: 1 x Battery Balance Module Enhanced 18650( 3S, 60A )

12.6V BMS 3S 40A 18650 Lithium Battery Protection Board With Balance
[Lithium Battery Protection Board] 3 Series 40A 18650 Lithium Battery Protection Board 11.1V 12.6V with Balance for Drill Motor Lipo Cell Module The 3 Series 40A 18650 Lithium Battery Protection Board 11.1V 12.6V with Balance for Drill Motor Lipo Cell Module comes with recovery function-AUTO Recovery and Integrated 10 low load resistance MOS tube. It provides a continuous discharge of 40A, 100mA balanced current, for electric drill/sprayer/LED lights/low power inverter. (if the cooling environment is not good, please reduce the load current use). The Scope of Nominal voltage of 3.6V, 3.7V lithium battery (including 18650,26650, a polymer lithium battery) where Charging voltage can be range between 16.8V to 18.1V The board operates smoothly with Continuous charge current of (upper limit): 20A. The balanced version is suitable for starting current below 80A, power 135W below the drill (with balance). The Board comes in a size of approx. 46 x 60 x 3.4 mm which can be easily installed in a compact size or on battery bundle itself. You can check our others BMS. Click here Features: 3S 11.1V 12.6V 40A 18650 lithium battery protection board (comes with recovery function-AUTO Recovery). Application: Nominal voltage of 3.6V, 3.7V lithium battery (including 18650.26650, a polymer lithium battery). Continuous discharge current (upper limit): 40A (if the cooling environment is not good, please reduce the load current use). Continuous charge current (upper limit): 20A. Suitable for the drills with starting current below 80A, power 135W below. Package Includes: 1 x 12.6V BMS 3S 40A 18650 Lithium Battery Protection Board
Out of stock3 Series 20A 18650 Lithium Battery Protection Board 11.1V 12V 12.6V
[Lithium Battery Protection Board] The 3 Series 20A 18650 Lithium Battery Protection Board 11.1V 12.6V with Balance for Drill Motor Lipo Cell Module comes with recovery function-AUTO Recovery and Integrated 10 low load resistance MOS tube. It provides a continuous discharge of 20A, 100mA balanced current, for electric drill/sprayer/LED lights/low power inverter. (if the cooling environment is not good, please reduce the load current use) The Scope of Nominal voltage of 3.6V, 3.7V lithium battery (including 18650,26650, a polymer lithium battery) where Charging voltage can be range between 16.8V to 18.1V The board operates smoothly with Continuous charge current of (upper limit): 20A. The balanced version is suitable for starting current below 80A, power 135W below the drill (with balance) The Board comes in a size of approx. 46 x 60 x 3.4 mm which can be easily installed in a compact size or on battery bundle itself. You can check our others BMS. Click here Features: 3S 11.1V 12.6V 20A 18650 lithium battery protection board (comes with recovery function-AUTO Recovery). Application: Nominal voltage of 3.6V, 3.7V lithium battery (including 18650.26650, a polymer lithium battery). Continuous discharge current (upper limit): 20A (if the cooling environment is not good, please reduce the load current use). Continuous charge current (upper limit): 20A. Suitable for the drills with starting current below 80A, power 135W below. Note: The Successful start of the drill requires a three 15C-20C power battery, or six 10C-15C power battery (ordinary 18650 cannot start the drill!!). Strictly according to map wiring 0V, 4.2V, 8.4V, 12.6V, 16.8V, do not deliberately short circuit. When the load of the brush motor is used, try to connect a non-polar capacitor (withstand voltage above25V, capacity 10uF-100uF) to the motor’s positive and negative terminals to prevent the reverse spike from the motor. Break the MOS tube. 4 groups of batteries in series, please ensure that the voltage of each group of batteries, if not the same, please fill each battery separately and then use it in series. The Discharge test, the voltage drop faster battery that group is a poor battery. Package Includes: 1 x 3 Series 20A 18650 Lithium Battery Protection Board 11.1V 12V 12.6V.