They are not waterproof. They are brushed DC motors with vent holes in the case and enameled magnet wire coils similar to most small motors in construction. You can operate DC motors in pure distilled water but eventually you will get corrosion. In dirty or salty water you get problems faster. If you want to use these on a toy boat or submarine, use a long propeller output shaft with o-ring seals and/or long oiled bushings to keep the motor away from water. Magnetic couplings that transmit torque from motor to prop could also work.

So if i just hook these up to a led etc, and turn them, it will generate dc power? or is there a another whole conversion needed?

They output DC. I used them in a windmill project and was getting 2 to 3 volts, more than enough for an LED. With some proper gearing you could get a lot more. The wires on them are pretty thin, I had to tin them to use them with Arduino.

Will they hold up to rain? Or would they need a shield of some kind?

Mini Generator Motors can not hold up to the rain.

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Sntieecr 6 Set Mini Generator Motors 3V-12V DC Motor, Wind Turbine Generator with Mini Fan Leaf and Plastic Motor Holder for DIY Educational Physics Experiment

Sntieecr 6 Set Mini Generator Motors 3V-12V DC Motor, Wind Turbine Generator with Mini Fan Leaf and Plastic Motor Holder for DIY Educational Physics Experiment

Product ID: 318823048

⚡3V-12V DC voltage range

🌀Up to 6500 RPM rated speed

🔄Two-way kinetic-electrical energy conversion

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VT5559

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Description

⚙️ Power your curiosity with the ultimate mini motor kit!

COMPLETE DIY KIT - Includes 6 motors, 6 mounting brackets, and 6 colorful propellers to fuel creativity and STEM skills.
KID FRIENDLY STEM TOY - Designed for ages 8+, this set cultivates practical knowledge under safe adult supervision.
PRECISION SPEED CONTROL - Experience speeds from 1500 to 6500 RPM, perfect for detailed experiments and models.
VERSATILE VOLTAGE RANGE - Operate seamlessly from 3V to 12V, adapting to your DIY power needs.
DYNAMIC ENERGY CONVERSION - Switch effortlessly between motor and generator modes for hands-on physics learning.

The Sntieecr 6 Set Mini Generator Motors kit offers six compact DC motors with a voltage range of 3V to 12V and speeds up to 6500 RPM. Featuring two-way energy conversion, it doubles as both a motor and a generator, making it ideal for educational physics experiments. The kit includes mounting brackets and colorful propellers, designed to engage kids 8+ in hands-on STEM learning while fostering practical skills and scientific curiosity.

Specifications

ASIN	B0922N8MCR
Age Range Description	Kid
Best Sellers Rank	#7,827 in Toys & Games ( See Top 100 in Toys & Games ) #80 in Educational Science Kits
Brand Name	Sntieecr
Customer Reviews	4.2 out of 5 stars 222 Reviews
Educational Objective	STEM
Is Assembly Required	Yes
Item Dimensions	4.72 x 2.36 x 1.18 inches
Item Weight	150 Grams
Manufacturer	Sntieecr
Manufacturer Maximum Age (MONTHS)	120
Manufacturer Minimum Age (MONTHS)	96.00
Manufacturer Part Number	D-001C
Material Type	Plastic
Model Number	D-001C
Set Name	6 Set
Size	24mm x 22.21mm (0.94" x 0.87")
Theme	Physics
Unit Count	18.0 Count

Reviews

J**S

11.07.2021

T**Y

29.02.2024

E**9

14.07.2023

B**4

8.02.2024

R**Y

20.05.2024

C**E

16.04.2025

A**R

4.07.2021

S**I

24.05.2024

C**E

22.06.2025

G**T

27.12.2024

A**S

2.10.2024

B**R

14.12.2023

D**E

3.09.2024

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