Anyone try to reverse the process and use mechanical energy to make a light bulb light up?

I have not tried that, but a dc motor can also be used as a generator so I'm sure it will light a small light. Maybe an led? if correctly polarity is observed.

what is the rpm range of this?

I have no idea what typical RPM is, over 60 I'm sure. I gave two of them as gifts to High school students. The units do spin very nicely. RPM? Strange request, since this is typically just an educational science project for kids to help them grasp magnetic field effects by building a motor and pondering it a bit. Far more memorable than looking a pages in a textbook. I have a signal counter but it would be a project to set up to measure frequency.. and the frequency (RPM) would be very voltage dependent. Perhaps you are stuck in analysis paralysis? Just buy one and play with it!

Are battery holders included?

Yes! 4, 3 & 2 AA battery holders are included in the product.

Does the armature come with the wire already wound on it?

Yes it is already wound. I helped my grandson assemble it about two years ago. It was better quality than I expected, and a good value.

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EUDAX STEM DIY Simple Electric Motor DC Motors Model Assemble Kit for School Labs Physics Science Educational

EUDAX STEM DIY Simple Electric Motor DC Motors Model Assemble Kit for School Labs Physics Science Educational

Product ID: 552661341

Details

Size
22x20x20
Brand
EUDAX
Theme
Science
Age Range (Description)
Adult
Item Weight
0.27 Kilograms

⚡1.5V-6V working voltage

🧲≥72mT magnetic flux density

🛠️Easy assemble & disassemble

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฿3377

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Sold byAmazon ThailandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚙️ Ignite your inner engineer—build, spin, and STEM your way to brilliance!

BUILD LEARN - Designed for effortless assembly and disassembly—perfect for immersive educational projects.
MAGNETIC MASTERY - High-density magnets (≥72mT) vividly demonstrate magnetic lines of force in action.
SUPPORT THAT STICKS - Comes with a detailed English manual plus responsive customer service for zero assembly stress.
POWER YOUR CURIOSITY - Operates smoothly between 1.5V and 6V for safe, hands-on STEM exploration.
REAL MOTOR EXPERIENCE - Watch the motor spin like the real deal, bridging theory with tangible results.

The EUDAX STEM DIY Simple Electric Motor Kit is a compact, easy-to-assemble educational tool designed for adults and enthusiasts to explore electric motor mechanics. Operating safely between 1.5V and 6V, it features strong magnets (≥72mT) and durable plastic-metal construction. Ideal for school labs and science projects, it includes a detailed manual and dedicated customer support, making it a top choice for hands-on STEM learning.

Specifications

ASIN	B07XWQ35MS
Age Range (Description)	Adult
Age Range Description	Adult
Battery Description	Alkaline
Best Sellers Rank	#230,936 in Toys & Games ( See Top 100 in Toys & Games ) #2,828 in Model Building Kits
Brand	EUDAX
Country of Origin	USA
Customer Reviews	4.3 out of 5 stars 371 Reviews
Educational Objective	STEM
Is Assembly Required	Yes
Item Weight	0.27 Kilograms
Manufacturer	EUDAX
Manufacturer Part Number	EX-DC-MOD
Material	Plastic Metal
Minimum Recommended age	168.00
Size	22x20x20 millimeters, 14x9x10.3 centimeters
Theme	Science

Reviews

M**A

Correcto producto

Es justo como está ahí si funciona bien producto

22.01.2024

J**F

Relatively Easy To Build And Educational

26.04.2024

D**I

Good quality product and learning tool

12.10.2024

M**L

Muy buen producto

Funciona muy bien, como se esperaba, fácil de armar, viene completo, todo ok.

28.05.2021

A**R

⭐️⭐️⭐️⭐️ Very fun and educational project

11.11.2025

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