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Description
Stark Hall Sensor Brushless Motor Electric Machine Fan Blade High Speed DIY Physical Model Science ToyDescription: Brand: Stark Name: Brushlees Hall Motor Model Power: 6W Working Voltage: 12V Dimension: 155x125x150mm Material: Fan Blade, Acrylic, High Speed Hall Sensor, Coil Speed: 2000 3000r min Hall Motor Advantages: Brushless Motor, Not Easy to Wear, Transparent Structure, Long Service Life Features: 1. Using hall sensor, transparent visual structure. 2. Multi coil design, stronger magnetic field, higher speed. 3. Laser cutting acrylic material, no
Description:
Brand:Stark
Brand:Stark
Name: Brushlees Hall Motor Model
Power: 6W
Working Voltage: 12V
Dimension: 155x125x150mm
Material: Fan Blade, Acrylic, High Speed Hall Sensor, Coil
Speed: 2000-3000r/min
Hall Motor Advantages: Brushless Motor, Not Easy to Wear, Transparent Structure, Long Service Life
Features:
1. Using hall sensor, transparent visual structure.
2. Multi-coil design, stronger magnetic field, higher speed.
3. Laser-cutting acrylic material, no burrs, beautiful cruved lines.
Creative gifts, technological gifts, principle teaching models, fashion desktop decorations.
4. Comes with USB transmission cable which contains the booster module. Just connect the model to power bank or mobile phone charging power, the voltage can be bossted to 12V, then the motor can work normally.
What is Hall Motor?
Hall is a semiconductor sensor, under the effect of lorentz force, the electron flow is deflected to one side when passing through hall semiconductor, causing the film to generate potential difference from the side. This is called hall voltage.
The hall voltage varies with the intensity of the magnetic field. The stronger the magnetic field, the higher the voltage, the weaker the magnetic field and the lower the voltage. The hall voltage value is very small, usually only a few millivolts. However, amplification by an amplifier in an integrated circuit enables the voltage to be amplified enough to output a stronger signal.
In the motor, a rotating magnetic steel is used as the switch to control magnetic flux. When the magnetic steel is closer to hall integrated circuit, hall voltage is large, and the magnetic field deviates from the integrated chip, hall voltage disappears.In this way, the output voltage change of hall integrated circuit can indicate that the shaft is in a certain position, which can be used to control the motor rotation.
Package Included:
1 x Brushless Hall Motor
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
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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
4.1 ★★★★★
Based on 172 reviews
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Product Reviews
★★★★★ 5
Cooling queen size comforter set
Team Name: Cooling Comforter, Size: Full/Queen(90"x90"), Color: 01dark Grey, Team Name: Cooling Comforter, Size: Full/Queen(90"x90"), Color: 01dark Grey
I absolutely love this cooling comforter set for my queen size bed. It’s not only cooling, but it feels amazing and very soft.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 8, 2026
★★★★★ 5
Portable, comfy, and super sturdy
I LOVE THIS! I bought this trifold mattress for guests and occasional use, and it’s honestly become one of my favorite things. It unfolds smoothly, lays completely flat, and the foam is firm enough to support you but still comfortable to sleep on. When it’s folded, it’s super easy to move and doesn’t take up much space. The cover is easy to clean, and it doesn’t lose its shape after sleeping on it multiple nights. Great for guests, kids’ sleepovers, or even stretching and lounging. Definitely worth it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 9, 2025
★★★★★ 5
Good trifold foldout
Color: White, Size: S06-Single
Great as an emergency pullout. Very comfortable, easy to setup and carry with the handles. Good as extra support as an exercise cushion too.
Mattress is a little hard but better than being too soft. Fabric could be softer or thicker, but not too bad quality.
May be good for a child's nap time. Fits good in closet for storing or accent ottoman in room.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 23, 2025
★★★★★ 1
DO NOT BUY.
Update: Amazon refunded me the price of the mattress as I can’t really send it back now that it isn’t compressed and we do not live anywhere near a UPS store. I reached out to the seller as it is listed as having a 5 year warranty. The seller has so far only initially offered me a 10% refund, so not honoring their warranty at all. I have refused this and asked for either a full replacement or a replacement section for the one that is defective. We will see if they stand by their warranty!
The package came SO compressed that one of the foam inserts never recovered. We opened it according to instructions, let it sit for 72 hours, and edges of foam were all so stuck together they did not rise properly. I had to take every piece out of both covers, manually pull apart the edges, and then let it rise again. We tried everything to get the third insert to be like the others- put it in a warm environment, put it in the bathroom where there is some more damp air, and still isn’t like the other two. It feels different as well- softer than the other two pieces. It’s like it is a totally different foam. It doesn’t fill out the cover completely and it is consequently very uncomfortable and not useable as one whole section is softer and thinner than the rest. I would like to return it but not sure how now that it is not compressed. Would not buy this product again. Very frustrating.
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Reviewed in the United States on December 30, 2025
★★★★★ 5
Firm but not hard
Color: Grey, Size: 4inch-Tw"
I sleep on this on the floor about 50% of the time because it’s so much more comfortable than my actual mattress. It doesn’t leave me with back or hip pain, it doesn’t sink so you never feel the ground like with an air mattress. It folds up to store under my real bed or I can fold in into a chair if I need. I did have to use a hair dryer to fluff up a few of the corners because they were taking a long time after opening but that’s to be expected.
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Reviewed in the United States on April 22, 2026
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