MAGT Buck Converter, Buck Step Down Regulator Module LM2596 DC/DC 4.0~40V To 1.25-37V Adjustable Reduced Voltage Regulator With LED Voltmeter

Great little device, used on my 3d printer as a step down for a RaspberryPi!Press the button to change from volts in to volts out.

Good value

Product faulty , had to return to Amazon , not a happy bunny, applied input voltage pressed on button then the magic blue smoke ?????. Will leave you to decide whether you purchase from this seller!

If you encounter difficulty adjusting the voltage initially, I recommend persistently turning the adjustment screw multiple times. This approach eventually led to a change in voltage output, allowing for precise and accurate settings thereafter.

Does what it's supposed to put it in a 3d printed case to use for some 12v LED from a 24v supply.

Easy to use, stable outputs and accurate. Great for testing kit that needs stable and specified voltage. Used on EC kit test on microlight a/c. Will use it next to test transducer outputs to confirm pressure gauge accuracy. Just a pity it doesn't step down to a voltage lower than 2v.However, 5 months after purchase and on just 6th or 7th use it just went 'phut' and stopped working - VERY disappointing.

Excellent product. Well made. Used to step down 28v to 12. Very pleased would recommend.

It's worked fine, good definition on the voltage adjustment screw, installed a heatsink on the fet as I had some lying around. Clear display, very happy.