Are these safe? With some similar products on Amazon there have been complaints of melting wires!

Unlikely, because the voltage is low (about 3V) and the current is about 1.5 amps.

How do i reverse the motors? Ive been struggling to

Just reverse the polarity of the voltage supply

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RUNCCI-YUN 40pcs DC Motor Kit, 1.5-3V 20000RPM Mini Motor with 9V Battery Connector, Motor Mounting Bracket, Rocker Switch for STEM Education, DIY Electronics and Hobby Projects (130 Type)

Product ID: 225239841

Details

Brand
RUNCCI-YUN
Material
Carbon
Model name
DC Motors Kit
Speed
20000 RPM
Voltage
9 Volts

⚡Up to 20,000 RPM high-speed motor

🔋Includes 9V battery connectors for instant power

🛠️Complete kit with mounting brackets & switches

€ 31.81

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚙️ Ignite your next STEM project with speed, power, and precision!

PLUG PLAY ENERGY - Comes with 8 reliable 9V battery clip connectors to power your creations without delay.
BUILT TO LAST PERFORM - Strong magnetic field and carbon brush design ensure stable operation and long motor lifespan.
VERSATILE DIY INNOVATION - Perfect for prototyping, science fairs, and hands-on electronics learning with 40 essential components.
PRECISION MOUNTING MADE EASY - Motor mounting brackets and rocker switches included for seamless assembly and control.
TURBOCHARGED STEM POWERHOUSE - High-torque 130-type DC motors deliver up to 20,000 RPM for dynamic project performance.

The RUNCCI-YUN 40pcs DC Motor Kit is a comprehensive electronics set featuring 130-type high-torque DC motors capable of speeds up to 20,000 RPM. Designed for students and hobbyists aged 14+, it includes 8 motors, 8 battery connectors, mounting brackets, rocker switches, and propellers, enabling versatile STEM projects and prototypes. Its durable carbon brush and magnetic design ensure reliable, long-lasting performance, making it an essential toolkit for hands-on learning and innovation.

Specifications

ASIN	B08BHXDFWH
Best Sellers Rank	96,461 in Toys & Games ( See Top 100 in Toys & Games ) 97 in Model Building Motors
Brand	RUNCCI-YUN
Country Of Origin	China
Customer Reviews	4.2 4.2 out of 5 stars (403)
Manufacturer	RUNCCI-YUN
Manufacturer Part Number	R339
Material	Carbon
Model Name	DC Motors Kit
Speed	20000 RPM
Voltage	9 Volts

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