Hey makers and tinkerers! This is a super handy DC-DC Buck Converter power module based on the XL4016 chip. It's brand new and unbranded/generic, but it gets the job done. Here's what it can do: it takes a higher DC input voltage (anywhere from 4V to 40V) and steps it down to a lower, adjustable DC output (from 1.2V all the way up to 36V). The max current is 8 Amps, and it can handle up to 200 Watts of power (just watch the heat!). MPN is listed as '8A 100W Step Down' (the specs say 200W, so there might be some confusion - treat it as a robust 8A module). Made in China, no UPC or EAN. This thing is perfect for all sorts of projects: powering LED strips, charging batteries, running motors, or creating a variable bench power supply. It's compact and has screw terminals for easy connection. Just be careful with the input polarity! A fantastic, affordable tool for your electronics workbench. Adjust the output voltage with the little blue potentiometer. Essential for anyone working with different voltage devices. Get creative and power anything safely! Order one (or a few) and simplify your power needs.