PW-D Control Buck Converter 6-24V to 5V 1.5A Step-Down Regulator Module Power Inverter Volt Stabilizer

Used for Victron distribution box light hack, wires are extremely thin be careful. Light hack worked!

Great size! Fits well behind the dome lights (what's that?) in a vehicle. I mount my dash cam high on the windshield for an excellent view. Dash cam has saved me a lot of money. This dc-dc converter has worked perfectly for three months.

Based on a test of a single unit, some practical specs: 1) Input voltage requirement: stable 5V with 9V input, no problems seen up to 30V. I tested at 100mA. This covers the range of 12V and 24V lead-acid batteries as found in autos and trucks (11V - to 29V). After doing this I tested at 14.4V for a 12V automobile battery. 2) Efficiency seemed to always be about 86%, so if you have a load of 1W the converter will be dissipating 0.16W and at 5W (which is a 1A draw at 5V) the converter ends up having to dispose of about 0.8W. My measurement system wasn't that accurate; input wattage is based on the readouts of a fairly cheap bench power supply. 3) Output voltage was stable over the current range I tested at 14.4V - 100mA to about 2A - HOWEVER above 1A the regulator was running above 80C. I measured temperatures using a restricted air-flow and a type K thermocouple clamped to the unit inside a paper towel rapping; i.e. this is very crude. I got 50C at 500mA output (the USB maximum). This ramped up to around 80C at 1A and 90C at 1.2A. These temperatures seemed moderately stable - I left the system running for a few minutes each time. I tried to get up to 2A without waiting for stabilization of the temperature but at some point the regulator stopped producing output. It did recover, I do not know if there is some internal temperature protection or if this was just good luck. I assume the 3A guarantee is the instantaneous maximum at which the regulator still produces 5V output, this would be consistent with what I saw. So far as I am concerned anything above 500mA continuous/average requires attention to cooling. The construction of the unit uses something which appears to be epoxy potting compound on the supply and output wires. This may be intended to provide moisture protection (along with the heat shrink wrap) but it also makes it next to impossible to unsolder the small gauge wires used. There does not seem to be any heat sink compound within the shrink wrap. Overall I rate these regulators very high; one star dropped because someone might actually try to use one for 3A continuous and because there is no continuous current rating in the advert. I would guess from what I observed that this is 500mA, corresponding to the USB figure that most 5V devices conform to. I intend to use one of these in an 8-900mA application because they are so conveniently small and I will know what happened and how to fix it if the converter fails after a few months.

I bought these to rig up a cable to run my Rove 4K dash cam from my rear-view mirror. 12V power source. The Rove specifies 5V at 1.5A which is at the limit of these units per the description. The wires are so small on these things that it was quite tedious to build up the cable and solder everything together and protect everything with heat shrink tubing. I was quite proud of my work. I double checked that it worked by attaching to a 12V power supply and measuring the output. It did output 5V. However, when trying to run the dash cam, no luck. Turns out that some cams need to have the USB interface (via IC circuit) properly installed otherwise they will shut down. I replaced this with the guts from a cigarette lighter adapter and all worked fine. Saving these for another project.

Used these converters for my DIY setup and they worked exactly as expected. Stable output and easy to connect. Great little modules for small electronics projects.

It's a very small unit, so it's great for installing anywhere. It does step-down the power but slightly above 5V. I ran a 12V power supply to the unit as I needed a step-down to 3-5V range. This did step it down but it was registering at 5.1V which ended up blowing out the end unit. So if you need 5V max step-down than this might not work.

These are perfect for adding an esp32 module onto a higher voltage system. I use them to power my esp monitoring and relay devices on my DIY battery boxes. The JST connector adapts well for quick disconnect when desired. The shrink wrap casing and included connectors saves assembly time and convenience.

It was right but so fragile

Great device and fast delivery.

Perfekt hat, funktioniert alles einwandfrei

For its tiny size, it's very efficient. It honestly shocked me on how well it worked on one of my robotics project to remind you. It draws a lot of power so yeah so far it's worth it 😜

Works fine

Used this to supply 5VDC power to Victron Lynx Distributor for illuminating circuit indicator lights. Very compact, and tucks away neatly inside the case.