Weewooday Adjustable LM2596S DC-DC Buck Converter Reduced Voltage Regulator Power Supply Module 36V 24V 12V to 5V 2A Voltage Stabilizer with Digital Voltmeter Display (2)

The media could not be loaded. Works as advertised. The extent of instructions is basically what is listed in the pics and descriptions, but easy enough to figure out. Took mine about 13 turns on the screw before it started dropping the voltage. Works as “always on”, although according to the description you can switch it off. Using it for a briefcase retro gaming console powering a small active speaker soundboard- taking 12v from a power supply down to 3.7v. Off by about ~0.02v (higher) than what’s on the display according to a multimeter- but for the price and this application, works for me.

My fault for not reading closer I thought I could take almost any voltage and create almost any voltage out when this is truly just a step down but it does regulate well in that configuration it just is not fitting my needs but that is not the fault of the product.

Have used these on several projects from Christmas lighting, pixel kits, power supply fixes, etc. They have good input and adjustment to the proper output voltage and they have so far been spot on.