• Angled profile of the mini hand-crank generator, showing the DC motor and red and black output terminals.
  • Side view of the hand-crank generator with a small green propeller fan attached to the motor's shaft.
  • A top-down view of a clear plastic hand-crank generator showing its internal green gears and crank handle.
  • A vertical view of the transparent 3V hand-crank dynamo, highlighting the gear mechanism and electrical terminals.
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Hand-Crank Generator 3V - STEM Education & DIY Science Project

Hand-Crank Generator 3V - STEM Education & DIY Science Project

HK$19.00
HK$19.00
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Shipping calculated at checkout.

Delivery Options

  • Local delivery within Hong Kong and in-store pickup.​
  • Free shipping for orders of HK$400 or above; HK$35 shipping fee for orders below HK$400.​
  • Shipped by SF Express, usually dispatched the same day for orders confirmed before 6:00 PM (Mon–Sat).​
  • Estimated delivery time: 1–3 business days after dispatch (Hong Kong).​
  • In-store pickup details (location and time) will be confirmed by email or phone message.​
  • Delivery times are estimates and may be affected by weather or unforeseen circumstances.​

Unleash the Power of Hands-On Learning!

Discover the fascinating world of energy conversion with our transparent hand-crank generator. This compact and engaging device is the perfect tool for classrooms, hobbyists, and curious minds of all ages. Simply turn the crank and watch as you generate electricity right before your eyes!

Key Features:

  • ⚙️ See the Magic Inside: The transparent casing beautifully reveals the inner gear mechanism, making the science of power generation intuitive and fun.
  • ⚡ Generate Your Own Power: Easily produces up to 3V of DC electricity—perfect for powering small LEDs, motors, and other simple electronic circuits.
  • 💨 Instant Feedback: Comes with a mini propeller fan attachment that spins when you generate power, providing an immediate and satisfying demonstration of your efforts.
  • 🔌 Easy to Connect: Equipped with standard red (+) and black (-) terminals for simple, secure connections to your DIY projects.

Perfect For:

  • Classroom STEM & STEAM activities
  • At-home science experiments and homeschooling
  • Demonstrating mechanical-to-electrical energy conversion
  • Powering small DIY electronics
  • Inspiring the next generation of engineers and scientists!

Specifications:

  • Output Voltage: Max 3V DC
  • Material: Durable Transparent Plastic
  • Package Includes: 1 x Hand-Crank Generator, 1 x Propeller Fan Attachment
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