Hilitand 4-Channel MOSFET PWM 3-20V to 3.7-27VDC 10A Driver Module PLC Amplifier

This product performs exactly as expected. I used it to amplify pwm signals from a PLC to operate hydraulic solenoid valves in a project I have been working on. This replaced very expensive proportional solenoid valve controllers, and it works well.

Beware that you need to hack the board to make it work with 3.3V devices, such as ESP32.The PC817 optocoupler input has both 4K7 resistor and 1.6V LED connected in series.With 3.3V input that results in optocoupler input current about 0.36 mA - too low.One way to make this work is to replace 4K7 resistor with 510 Ohm resistor.Which results in optocoupler input current about 3.3 mA.

Great little product. It could use better quality control and better terminals though. I found one of the outputs had an IC leg that wasn’t soldered fully. It was easily fixed but took a little bit to troubleshoot. The terminals are alright, though I would prefer just a flat tip only screw head. Don’t even bother with trying to use a Philips screwdriver either, doesn’t work at all.

this device doesn't work as advertised with a 3v PWM input. I don't know why i did not read the reviews. I usually do, shame on me

I used these for work for testing mechanical switches.Used two of these FETs to drive 1 million solenoid closures to test some handle bar switches.Ran for days start to finish with no issues.

So I am going to give it five stars for now. I am running a test to see if the Mosfets get hot or not running an automotive 30 amp relay coil. So far the board is ice cold!!Ive been writing code and developing systems around Arduino and Raspberry pi controllers. This is first interface I have found that can run an automotive type relay. The only thing on market are relay boards with non removable relays. This is stupid to run a relay to power a relay. The relays on these boards are only capable of 10 amps and if any one of the relays go bad the inter board is junk unless you can solder a new one in place. 10 amp relays are not enough for general use, you need a relay capable of twice the load of what ever you are trying to run. Most automotive hardware is 8 amps. The relays on these junk boards are not adequate, you need to use the wimpy relays on these boards to signal a real relay with generally 30 amps. Now you can power something directly from a 5 volt logic controller!!So far this board looks good. Its build quality is very solid, it shipped to me very fast. I was surprised how fast it got here.To the vendor do not ever discontinue this product! Please expand this to an 8 channel and even larger. Get us shields that will plug into an Uno R3 Please. This is the interface we are all looking for not weak non replaceable relay boards.

Used this board to power motors from an Arduino and it worked very well.

The input LED would light when the KL25Z sent a 3.3v signal, but the output FET would not energize. I shorted out the input led and they started working. I am sure they would work fine with a 5v signal.