Tony Million
Reviewed in the United States on March 11, 2025
These let you control high voltage power from a standard 5v or 3.3 volt device.Imagine you want to control a 12 or 24v high current device like a light from a low power device like an Arduino - this is the thing to use!In addition these boards can use a pwm source to control the amount of power supplied by the high power side. Effectively you can use your Arduinos digital pwm output to control the higher power output like a dimmer switch)
Donald M. Rosendale
Reviewed in the United States on January 11, 2025
I am using this MOSFET to control a solenoid, which is used to pump air (think Aquarium Air Pump but a little bigger). It provides enough current to reliably cycle the solenoid and works flawlessly.I like the fact that it is more of a "maker space" type of device, and doesn't require breadboarding. It is a "one-stop shop" for the output.Note that if you are using this device to turn on inductive devices, like solenoids, you will need to install a "Snubber" diode across the output to protect the MOSFET circuit. I did so as well. The inductive back current could cause the MOSFET to fail otherwise. I've seen some comments about the failures of this MOSFET. Chances are those people did not protect the circuit. A simple diode will work. Do some research on Google if you are curious.
Al K
Reviewed in the United Kingdom on January 11, 2025
These are great cheap alternatives to SSRs for DC loads. The output from your microcontroller GPIO can go directly into the signal pin and using them with ESP32 for PWM works perfectly - or just using digitalWrite for a simple relay substitute. I have never gone higher than 6A at 12v on the load so I can't vouch for it handling 400W. My only criticism is that the arrangement of the terminal blocks is slightly annoying when you're mounting a few of them together as wiring gets messy. It would be better to have the terminal blocks in a line across one edge.
qiang gao
Reviewed in the United States on August 10, 2024
I throw it all to trash can five minutes after receiving it.
AlexCphoto
Reviewed in the United States on July 19, 2024
I love these things, yah I could make my own but everything is just there and ready to go in a perfect little package, my only request is consider selling them without the screw terminal blocks, not everyone wants those chunky things, I'd be happier soldering leads directly to pads or holes and they are a pain to remove.I think iv ordered 5 sets now and already used half of them in various projects
burnem79
Reviewed in the United States on May 13, 2024
These are such a time saver, I have never had one fail and always had good luck with these out of the box.
Gregg Pierce
Reviewed in the United States on November 11, 2024
With the addition of a volt and amp meter I could see where and when the trigger part was failing the mosfet board, I must have destroyed close to 10 of them because of this little unknown part of the trigger.The second photo shows the PS the red meter shows the voltage of the trigger and the orange meter shows the ma of that voltage. And that is where the problem was. The ma of the Trigger is somewhere above the the 3.8ma.My fix was to put a 47k adjustable resistor and monitor the ma so it doesn't go beyond the 3.8.The leds are the back emf to keep the mosfet cooler.I just posted a pic of my latest work. I added a 10k VR to adjust the pwm/triger. What I am finding out is when I turn the VR down the rpm goes up and the ma goes down.And the digital thermal monitor tells me how hot the mosfet chips are getting.I well tell you. I used to use a 3v blue cube for this project and untill now I could not get past 5000 rpm before the cube melted.
Amaurosis Fugax, MD
Reviewed in the United States on November 10, 2022
I got these based on my previous experience with EPLZON's buck converter, which I rated highly. I am using these switch modules to control a DC motor via an Arduino and for that purpose they work well.These switches appear to be a generic commodity item, available from several different vendors and all appearing to have been made in the same factory. Packaging was odd as many of the module circuit boards were still all attached to each other, one group of five and the other group having broken apart during shipping. The groups of five each came in a non-anti-static bubble-wrap bag and those two bubble bags then inside a sealed anti-static mylar bag.The MOSFET switches appear well made and clean. The switches are labeled on the back side and are fairly intuitive to use. The Amazon listing shows specifications but no instructions. However, you can find detailed instructions on some of the other vendor's listings if you need them.I would buy these again.
Andrew
Reviewed in the United States on October 17, 2022
I have a 12V input and only 5V will output.