LED Numeric Display: The buck converter has an LED voltmeter thats pretty accurate, with only ± 0.1V error. It works with input voltages from 4.0V to 40V and outputs between 1.25V and 37V. Just so you know, if the input voltage goes below 4V, the voltmeter wont work and the display will go off. To turn it off, just hold the switch for 1 to 4 seconds and let go. Once its off, you can turn it back on by tapping the switch quickly.
LM2596 Adjustable Buck Converter: This is a second-generation voltage regulator that runs at 150KHz. It uses less power and works really efficiently. It also has high-quality solid capacitors that keep the circuit stable and durable while filtering out any high-frequency noise.
Ease of Use: With the LM2596 buck converter, adjusting the output voltage is super easyjust use a mini screwdriver. Plus, it comes with terminal blocks, so you dont need to solder anything unless you want to.