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

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.

The magnets were a great accompaniment to our science lesson. The students enjoyed the hands on activity. This was the first time the students had ever experienced magnets.

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

This kit offers very good value for the relatively low price. The parts allow experimenting with different projects using electric current. The inclusion of a DC motor is a plus, but it cannot be powered by the fruit battery. The motor can be powered by a common 1.5 volt battery.Since the kit does not include detailed instructions or circuit diagrams, two photographs are included for the clock and LED.

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.

Set the battery as per instructions. The LEDs lit up. Not super bright because it was a few apples. Lemons would have been better if I had them. The clock worked with TWO red apples. The instructions are very clear not to go over 2-3 apples w/the clock. The led is not bright enough w/one apple. I used FOUR ****Just like the little picture showed***! My son and I got a kick out of it. Motors did not work but likely b/c not enough voltage. I am guessing the motor was a 3V motor, not sure , it was not labeled (but 5V would seem like a bad idea anyway). Anyway, 45 minutes of fun at least on the first night. The little piece of paper is helpful. This is not a college course people! It is for a little bit of ~~fun!!. Great idea!

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.