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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
4.8 ★★★★★
Based on 8 reviews
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Product Reviews
★★★★★ 1
Horrible quality.
Size: One Size, Color: Brown - Passcase
It looks great as long as you dont use it. Within 2 days, the leather corners of the wallet started wearing out and losing the color. Its looking 2 years old with only 2 days of use. What a joke. Cant believe tommy hilfiger is putting their name on dollar store quality products.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2025
★★★★★ 5
Great wallet at an affordable price
Material Type: Leather, Color: Brick Brown4203, Material Type: Leather, Color: Brick Brown4203
Works as it should. Magnet is pretty strong so it holds its closed position well. Fits all my cards great. Easy to pull out DL. Overall design looks and feels nice and sturdy. Leather feels great and durable. Cards are easy to access; put in and slide out.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
★★★★★ 5
Good product; good value
Material Type: Leather, Color: Brick Brown4203, Material Type: Leather, Color: Brick Brown4203
I’m quite impressed by this product. It came quickly, as advertised, and at a reasonable price. I am a fan and long time owner of slim wallets. This has a great layout/design with plenty spaces for everything you might carry and is well made of sturdy materials. In addition it has a great look and is comfortable in every pocket I’ve placed it in. I’m a fan of this product.
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Reviewed in the United States on May 22, 2026
★★★★★ 5
Very nice wallet
Material Type: Leather, Color: Brick Brown4203
Surprised with this Wallet I’ve had it a couple of weeks now and it seems very durable and it holds everything. I need very well and tight. The size is perfect for my pocket
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Reviewed in the United States on April 23, 2026
★★★★★ 4
Good choice!
Material Type: Leather, Color: Brick Brown4203
Brick brown very attractive. Strong magnet closure. Multi card pockets. Slim, nice for dress slacks.
I'll buy again for my other son.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 16, 2026
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