DC DC Buck Boost Converter Variable Voltage Regulator CC CV 0.5-30V 4A 5V 6V 12V 24V Power Module Adjustable Voltage Regulated Laboratory Power Supply

Every once in a while you purchase something that really impresses you, and this time it is this little device. It has a bunch of features and performs flawlessly. I connected it to an old 12V 5 A PS I had saved from a malfunctioning printer.In the past few days I have used it to charge two different batteries, one NiMH and one LiFePO4, run a low voltage, fairly high current motor and run a digital electronic development system.Particularly useful is the boost/buck ability as well as the ability to verify the input voltage and current.Excellent product.

Works great so far. Still learning how to use the adjustments on it. Plugged it into 12V DC and was able to adjust from almost 0V to 22V. Will try to go higher but not needed for me. It is a very fine adjustment so get your wrist and patience ready if you need to go higher volts with it.

I bought a couple of similar modules to test for amateur radio application. The first thing I noted was that the heat sink was loose. It didn’t press against the components it should cool. It was just a mechanical problem the single screw holding it in place was cross threaded during assembly. To fix it I had to cut away two blobs of heat glue which was used to hold the top board in place. The top board with the heat sink and power components could then be easily removed. After reseating the screw and heat sink I had hope that this was just the only problem, put it back together and start testing it. I applied 12V from my bench power supply at the inputs and connected an electronic load at the output. The output was set for 13.8V and I left the current limit at the default of 5A. Starting up with no load it was providing 13.8V exactly. But when I increased the current draw at the load the voltage start dropping around 1.5A draw. It did not go to constant current, it just folded back. I did go through all the settings but no matter what, I was not able to draw more current. I guess there was more wrong than just the loose heat sink. I also bought a similar Buck/Boost converter which was a bit more expensive but featured a color display and a fan and worked to my satisfaction in the same setup.

SO I have had this for about two weeks. The setup was very simple Connect your input in my case a 24 Volt 100 amp Battery, and then your output in my case I am powering a computer monitor that requires 19 Volts. Drum roll please..... The monitor turned on and worked. The first thing I noticed was the meter says .780 of a amp when the back of the monitor says 1.5 amp draw, however that could be the manufacturer telling the maximum draw instead of the actual amount it was not really clear. Over the last two however the amount the monitor is drawing has decreased according to this meter. Since the brightness of the monitor has not decreased, I am going to say that the meter is not reading the amperage correctly as of today the meter is say .30 of a amp draw opposed to the draw the first day of .780 of a amp. and again, this reading has steadily decreased over the last two weeks. Since I am not preforming any scientific studies how much the meter reads really does not matter, as long as it keeps the monitor powered.

It doesn't have a main power switch. Sur it cuts the output power, sure But the display stays on draining ur battery so make plans in ur design to put a on/off switch before this unit. Its no biggy but its just one more thing u must add to the face of ur design possibly (as in my case) more precious space. I think that's weird /funny 😄. Sure its easy to slap one in a design but if the company describes it as having a on/off switch than it should have a on/off switch, that is what it should do! But this doesn't. It's got all these limiters in this program but it can't turn itself off. Im sorry I think its ridiculously funny 😄.Other then this I like it. It took me a good 1/2 hour learning all the functions (some are totally useless to me) BUT/and but! U can't change from C° to F° ok thats another flaw. Wthell u have English on the Display, 50% of us use F°. Funny funny funny 😄

I got a pan tilt security camera and the supplied power block didn't provide enough current so the camera would disconnect when moving the camera. I used an old 16vdc power supply to power the buck boost converter turned the voltage output to 6vdc and current limited to 3amps. Completely solved brown out problem.This little unit makes an awesome adjustable power supply for all your little projects too for the price.I have been running this unit 24/7 for 2 years and it is still working great. I plan on getting one or two more because they are an awesome way to power all of your DC electronics and to even get around batteries when the time calls for it.

This is a nice little regulator with a lot of features. However, I bought it convert the variable voltage from a solar panel to 12V to charge a 12V battery and for powering electronic devices as well as an inverter for small AC powered devices. It works well except for one feature. As sunlight fades and the panel voltage decreases, the regulator senses a low input voltage and shuts down. That's okay, but when sunlight returns, the regulator stays in shutdown mode and has to be manually restarted. If the regulator self-restarted, I would have given it 5 stars. The "manual" is difficult to read and decipher, but as an electrical engineer I was able to figure it out.

Inexpensive worked for needs in test. I bought a second one.