Sntieecr6 Set DC Motor Kit, 159PCS STEM Mini Electric Motor Kit for DIY Science Projects, Science Experiment Educational Learning Kit for Kids Ages 8+

A little smaller than I expected but seems to be adequate quality for demonstration purposes. The round magnets are very strong. The little cars are pretty flimsy but still adequate for demonstration.

Gracias

Good value. Wires are a little fragile. Used these for a science/engineering class. The students loved using them.

This little kit is exactly as it was shown online. I was happy I could open the box to play, I mean inspect (lol), the magnets before gifting them to my four year old grandson. He will be thrilled with this set. These magnets are quite strong. Yes, they are little pieces but that is exactly what I was looking for as this is for little hands. And I was very happy the iron filings are in a sealed clear plastic box. I do not want those spilled all over the house.

This is one of nine different sets of electrical educational kits that are sold as different "styles" with reviews that are apparently grouped together as if they were all the same product. I am writing only about the set of 6 motors, motor mounts and propellers.Very little power is required. A single 1.5 V L44 button cell was sufficient to power a motor with an attached propeller. The propeller/fan blade takes some force to push onto the shaft and stays securely on. Attaching the positive terminal of the battery to the read lead and negative to black, results is CCW rotation and proper fan airflow from the motor through the propeller.If the leads of two motors are connected red to black, a strong puf of air by mouth will cause the propeller receiving the air to turn the attached shaft thus generating enough electrical power to turn the other mootor.If the leads of a motor are connected to an LED with no series resistor, black to anode (plus) and red to cathode (minus) a strong puff of air by mouth will cause the motor to generate sufficient poower to briefly light the LED.A small 2x2 inch solar cell illuminated by a 1500 lumen bulb held very close to the cell was able to operate a motor - propeller combination. I can not locate the solar cell specifications. It is not from this seller.All combinations of driving propeller and driven propellers styles (4 blade & 3 blade) resulted in sufficient power to light an LED from the power generated by the driven propeller motor/generator combination. The driving motors were powered by 12 volts. Unfortunately operating the motors at 12 volts resulted in two destroyed motors even though the sellers information seems to indicate that is an acceptable voltage.This motor and propeller kit is a good way to demonstrate several aspects of electric energy generation and use.

This worked perfectly, we used a different brand on Amazon that didn’t work and went with this brand at it worked perfectly

Waste of money, not enough connectors to power the included accessories. Not enough power for the motor to turn the propeller.

Great for learning magnets! The cars are great for magnet races. This supplemented so experiments with out homeschool curriculum. Comes in a case so easy to store