The 4V–12V Dynamo Motor Generator is a compact DC motor that can also be used as a small generator. When mechanical force is applied to the shaft, it can produce electrical output. It is suitable for DIY generators, hand-crank projects, science experiments, and small renewable-energy projects.
Features
- Works as both a DC motor and generator
- Wide operating range of approximately 4V–12V
- Metal body for durability
- Compact and easy to mount
- Smooth rotating shaft
- Suitable for low-power generation experiments
- Easy to integrate into DIY projects
Specifications
| Specification | Details |
|---|---|
| Product Type | DC Dynamo Motor / Generator |
| Rated Voltage Range | 4V–12V |
| Motor Type | Brushed DC Motor |
| Generator Output | Variable, depending on rotation speed |
| Shaft Type | Round Metal Shaft |
| Shaft Direction | Bidirectional |
| Body Material | Metal |
| Terminals | 2 |
| Mounting | Front Mounting Holes |
| Operation | Motor / Generator |
| Cooling | Natural Air Cooling |
Terminal Configuration
| Terminal | Function |
|---|---|
| Terminal 1 | Motor/Generator connection |
| Terminal 2 | Motor/Generator connection |
When used as a generator, the polarity of the output depends on the direction of shaft rotation.
Applications
- DIY dynamo projects
- Hand-crank generators
- Mini wind turbine projects
- Bicycle generator experiments
- Science and school projects
- Emergency power experiments
- Battery charging experiments with proper regulation
- Small robotics and mechanical projects
- Educational demonstrations
Advantages
- Dual-purpose motor and generator
- Simple two-wire connection
- Durable metal construction
- Compact and easy to install
- Useful for educational and experimental projects
- Can generate electricity from mechanical rotation
- Suitable for a variety of DIY applications
Size
- Compact cylindrical DC motor
- Exact dimensions may vary depending on the motor version
Package Includes
- 1 × 4V–12V Dynamo Motor Generator
Note
The generator’s actual voltage and current output depend on shaft speed, mechanical load, and motor characteristics. Do not assume a constant 12V output. When using it for battery charging or powering sensitive electronics, use an appropriate rectifier, voltage regulator, and current-limiting circuit.







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