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3-6V Mini Submersible Water Pump
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The 3-6V Mini Submersible DC Water Pump is a compact, low-voltage solution for moving water in DIY electronics projects, aquarium setups, miniature fountains, cooling systems, and other small-scale applications. Its compact form factor makes it easy to install where space is limited, while its low operating current helps keep power requirements manageable.
Designed for simple integration, the pump operates from a 3.3–6V DC supply and can deliver a flow rate of approximately 80–120 L/H, depending on the operating conditions. Its submersible design allows the pump to be placed directly in water, making it convenient for compact water circulation and transfer applications.
The pump is particularly useful for students, hobbyists, makers, and electronics enthusiasts building Arduino-based or other microcontroller projects. It can be controlled through a suitable transistor or MOSFET driver when automated operation is required.
Whether you are building a small water fountain, aquarium circulation system, science project, hydroponic setup, or automated cooling project, this mini submersible water pump provides a practical and economical way to add water movement to your design.
Check out our entire range of DC Pumps & SOVs
This mini submersible pump is perfect for a wide range of applications including small fountains, aquarium circulation, DIY water projects, and cooling systems. Whether you need a small submersible pump for compact spaces or a mini water pump for low-voltage operations, this device offers flexibility and efficiency.
Its compact size makes it an excellent small water pump for projects where space and power consumption are critical, without compromising on performance.
Take your DIY electronics projects to the next level by turning this mini submersible water pump into a smart, automated irrigation system. Whether you are building a desktop hydroponic setup, an aquarium top-off system, or a vacation plant-watering solution, this 3-6V DC water pump is the perfect, compact heart for your build.
What You’ll Need for the Build:
How It Works:
The soil sensor continuously reads the moisture levels in the pot. When the soil drops below your set threshold, the microcontroller sends a signal to the relay, activating the submersible pump. It draws water from a reservoir and delivers it directly to the plant. Once optimal moisture is reached, the pump shuts off automatically, saving water and protecting your plants.
Pro Tip: Want a step-by-step walkthrough? Check out our detailed tutorial: Smart Irrigation System Using Arduino (Pump + Relay Guide).
1 x 3-6V Mini Submersible Water Pump
| Operating Voltage | 3.3 - 6 VDC |
| Operating Current | 130 - 220 mA |
| Flow Rate | 80 - 120 L/H |
| Maximum Lift | 40 - 110 mm |
| Weight | 10g |
const int pumpPin = 9; // Pin connected to the transistor base
void setup() {
pinMode(pumpPin, OUTPUT);
}
void loop() {
digitalWrite(pumpPin, HIGH); // Turn on the pump
delay(5000); // Wait for 5 seconds
digitalWrite(pumpPin, LOW); // Turn off the pump
delay(5000); // Wait for 5 seconds
}
A Water pump pushes water to the surface by converting rotary energy into kinetic energy into pressure energy. The water is drawn into the pump in two stages: first, in the intake, where the impeller rotates and pushes the water through the diffuser, and then in the discharge. It rises to the surface from there.
A Mini submersible water pump is lightweight, small in size, has low consumption, and makes little noise. A mini submersible water pump is used for building science projects, fresh water intake or exhaust systems for fish aquariums, and for garden watering systems.
Yes, designed with user convenience in mind, it's easy to use and maintain, perfect for DIY enthusiasts.
It has a flow rate of 80 - 120 L/H and a maximum lift of 40 - 110 mm, ensuring efficient water movement.
Use a transistor, MOSFET or relay module between the pump and its supply. Do not power the pump from an Arduino pin; it draws more current than a pin can supply.
Good product nice performance
It works great
3-6V Mini Submersible Water Pump
3-6V Mini Submersible Water Pump
Nice pump
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FlySky FS-CT6B 6ch 2.4GHz Transmitter & FS-R6B Receiver
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Veri usefull and cheap price from other shopping site, I use this module many project. Thank you robocraze
I am highly impressed with the service. The support team resolved my print issue swiftly, and the delivery was both fast and securely packaged. The final print is of outstanding, A1 quality.
Good
it works👍
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