diymore Synchronous Buck Converter 200W 15A DC-DC 8-60V to 1-36V Power Supply Step Down Module

Works great

This works great for taking 4s (or more) lithium ion packs down to 12v. But if your antenna is close, you will likely experience some birdies (picture attached). This was with the antenna beside the device. When I ran the same test with my notmal outside antenna, sove birdies were still visible/audible. So be careful what your intended use is. Otherwise, it works great. I will certainly put this to use with some other projects.

As some of stated. Worst quality control ever. Shorts, bad solder on many contacts and absolute dirty. One the voltage could not be adjusted, the other voltage could be adjusted but not full range and jumping all over, not a consistent change as with other units. Do not buy! Same units come from other suppliers and work out if the box. Skip these

The unit worked great. I used it for about 1 week to regulate the voltage to the field winding of my gas generator. I had it fused at 3 amps. after the first week I had to readjust, now I see the control is bad. The volt level control has gone bad. I think it is just a bad control. I may be harsh with my 3 stars but it got you to read this. For the price of this unit, I still think it is a very good buy. Now if I can find the value of the open control, I will fix it. Anyone have the diagram ?Well, it wasn't the control like I thought. There is a problem in the circuit. With cost to send back or price of parts, I'll just throw it away, buy a different brand. Maybe I wasn't so harsh after all.

Used for charging batteries off 36volt solar panel.They work with no problems.

Works just fine for my use. Gets warm. I couldn’t get it to work. Then I tried adding the relay. Got it to work on a kids huffy torex utv 24v. Dropped voltage from 36v to 24v 👍

Tried a few low current devices for a light project I've been workin' on. * see Image * They worked but just didn't have enough to expand on. So got some of these 20Amp buck inverters. Been really happy with how much work they can do while maintaining correct potential and current. That said... Each light string is about 1 meter in length. The Inverter doing the most work has 8 strings connected. Supply is 24Volts. At 20 Watts output expect some warmth from the Inverter. Beyond 30 Watts you'll want to put a fan on to cool the Inverter. Something to watch for, inrush is a thing, so if you're using this to run LED strings, be sure to set the potential within specs for the string and then set the current to suit your needs. If you only set the current, there can be an instantaneous in rush which may exceed the LED's limit and reduce their working life. Best luck to you on your project. :)

Worked perfectly to go from 19.9dcv to 10 through 12 to make the cart go go faster. Stays cool and power doesn't "brown out" under load. You don't need something this big if you're just doing LEDs or really low amps but handled two 6v dc motors in a 2yr olds ride on bumper car. Might not be enough for a powerwheels though depending on motors used and kids weight.