DC 12V Voltage Regulator DC 8V ~ 40V to 12V 3A 36W Converter- DC 36V 24V 18V to 12V Step Down Converter Regulator Waterproof Module Transformer

I installed this to stop my LED lights flickering after installing a diesel heater to my off grid 12 volt system.Glad to say it worked perfectly and there is no longer a light flicker every time the diesel pump clicks.

I originally brought 4 of these to use in conjunction with my 48v solar system, inorder to run my 12v appliances (fridge, waterpump) they are very well made, and the cables are pre stripped to speed up connections. the input remains at 12v regardless of battery being fully charged which is really useful. The units have two mounting holes and werent bothered by my impact driver! the fuse it pre-installed with a spare in the box which was a nice touch. and on the back it shows you which are the input and output cables if you were unsure along with the ploarity of each. great product really good price. they also dont get warm through prolonged use and load.

i have had a while now. powers 18v drill batteries down to 12v for use in van with a multitude of accessories and works great

So I changed to leds in my camper van and a lithium battery. Most of the LEDs are absolutely fine. But had 2 that kinda flicked slightly with a unregulated supply. So I thought if give this a try. It seems to work but the test will be soon when away for a week.So I think it's ok and has sorted the issue in giving a regulated 12v supply.Not anywhere between 14v and 11v.See how it goes.

works well as intended

I'm using one of these to power addressable LEDs for Christmas lights.Converting 19V from an old laptop supply down to 5V. Works Great.

Purchased this to provide power for a raspberry pi 5, which requires a minimum of 4.65v and 5a. I provided the buck with 12.5v and >10a which should easily supply the required power, yet voltage out of the buck is 5.05v with no load. With the load of a raspberry pi 5 at idle, which is less than 3a, voltage drops to 4.95v and sags down to below 4.65v under load.I struggle to imagine how this "10a" converter can provide anywhere near that. And even if it could, what voltage would that 10a be at?Complete waste of money.

Had wanted to fit led strip lights in my new van. Ordered the lights and cabling and the new trunking from Amazon then wired straight into an 18v battery. Very quickly realised I needed voltage dropper. Done some Googleing and found I needed this. Ordered and delivered very quickly. Fitted as per the instructions and now leds don't smoke. Very happy I found this. Cheap too.