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Description
Stark 4-coil Hall Brushless High-speed Electromagnetic Motor Engine ModelStark 4 coil Hall Brushless High speed Electromagnetic Motor Engine Model Features: . Design Intention: This product has 4 coils and 16 magnets, the upper and lower coils are magnets, the maximum use of the magnetic field generated by the coil to reduce losses and increase efficiency; you can use 5 24V power supply (recommended 12V power supply), a power supply , Just plug in any one of the circuit boards to turn, the remaining circuit boards can be
Stark 4-coil Hall Brushless High-speed Electromagnetic Motor Engine ModelFeatures:
.Design Intention: This product has 4 coils and 16 magnets, the upper and lower coils are magnets, the maximum use of the magnetic field generated by the coil to reduce losses and increase efficiency; you can use 5-24V power supply (recommended 12V power supply), a power supply , Just plug in any one of the circuit boards to turn, the remaining circuit boards can be used for power generation, when one circuit board is powered on and rotated, the LED lights on the remaining circuit boards will also light up
.Precisely control the on and off time of the coil; high speed, up to 1000-5000 rpm under 12V energization, and mute; when the magnet rotates, wind will be generated to cool the coil, reduce the temperature of the coil, and extend the service life; the product display effect can be based on Need to adjust at will.
.Technical Points: High-precision Hall sensor, customized drive circuit, 4 coils installed at 90 degrees, high-speed bearings, retro design.
.Usage: Plug the power supply into any circuit board and turn it. If it doesn't turn, you can drive it by hand.
.Note: The product can not be changed the power supply voltage and power without permission; it is strictly forbidden to connect the wires privately; acrylic is easy to deform, crack, wear, and will be shipped with a film, please do not drop it or put it in a high temperature environment; Rotate the motor to avoid danger.
.Significance and Value: This product can be used as a scientific educational toy, scientific decoration, electromagnetic demonstration of teaching experiments, etc.; to stimulate interest in scientific exploration and strengthen the cultivation of scientific quality
.For Age: 8+
Specifications:
.Color: As Shown
.Material: Metal + Acrylic
.Voltage: 220 Turn 12V
.Current: 2A
.Power: 15W
.Product Dimensions: 18.5 x 18.5 x 8.5cm
.Product Weight: 1077g
.Package Dimensions: 22 x 20 x 12cm
.Package Weight: 1200g
.Packing: Box
Package Content:
.1 x Motor Model
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 22 reviews
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Product Reviews
★★★★★ 3
Purple watch
Color: F-Purple
The watch is cute but the magnet clasp is not sturdy so the watch continues to loosen up continously. So,I'm satisfied
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 13, 2025
★★★★★ 5
Beautiful Watches
Color: F-Rose Gold
I ordered three of these watches! They were delivered promptly. The seller was very responsive with my question regarding delivery as I wanted to receive them before my birthday of August 29th. As soon as I saw them I knew I made the right choice I ordered the black coffee brown and rose gold all three of them are beautiful they are by far the nicest watches I've ever owned I would say even nicer than my Movado. If you are thinking for a watch for yourself whether business or casual or a gift for someone for Christmas order one of these with the Platinum strap. You won't be disappointed!
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Reviewed in the United States on August 17, 2021
★★★★★ 4
Make sure it fits
Color: F-Rose Gold
Looks nice
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Reviewed in the United States on May 30, 2026
★★★★★ 5
Adjustable for larger or smaller wristd
Color: F-Rose Gold
Really pretty. Everyone comments on it! The adjustability is most important as I have a large wrist.
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Reviewed in the United States on February 9, 2026
★★★★★ 2
Beautiful, But Functional Needs Fixed
Color: F-Rose Gold
The watch is beautiful, but the latch component doesn't snap closed. I'll return the watch.
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Reviewed in the United States on February 8, 2026
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