FNIRSI DPS-150 DC Power Supply Variable, 30V 5A Adjustable DC CNC Power Supply with 4-Digit IPS Display, <20mV Power Ripple, PD/QC/DC Input, PC Programmable Switching Power Supply (NO Power Adapter)

Such a handy thing to have around. I haven’t confirmed the precision, but it’s much better than some other supplies I’ve used.

Interesting piece of hardware. Pair with a nice power supply brick or a power delivery battery and you have a portable piece of lab equipment. One use I've found is trying to revive lithium ion batteries in a fire pit incase they go south.

Works great with my laptop USB-C charger! Great travel friendly lab power supply

UPDATE: the sellers have reached out and made it right. Im leaving my review as it is still valid but changing the rating (up from 1) because of how prompt and nice they were. They offered a full refund and did not ask for anything in return, not even to change my review, that goes a long way for me.I really wanted to like this, it could have been an incredibly perfect tool and I have been looking for something like this for a while. BUT. I killed two usb-c power bricks trying to run this. They each could normally support 65+ watts and I had this set to 15v 1amp then 0.7amp (so far below expected limits). These were trusted power bricks that I regularly use for my laptop or charging numerous other usb-c things and I know they are PD and can easily support the wattage. So I warn against using this. I tried a barrel connector which has worked so far but that limits the usefulness of this device, it would be great if this worked from usb-c but Ill never test it again, Ill spend more money replacing the bricks than this device cost.

Nothing.evrthing I expected.

UPDATE TO 1 STAR! This thing is so noisy it is useless for powering anything but a purely resistive load. Was having a lot of trouble getting an MCU to boot reliably @ 5vdc from this supply. Turns out it has a ~200mv constant noise component at about 263hz and some spurious noise that can get to over 480mv. I tried a few different power sources to rule that out as a possibility. Its definitely the DPS-150. Maybe I just got a lemon.It generally works, and looks nice but thats it. As usual, Fnrsi products are designed to look premium, but are not actually particularly premium. Firstly, the micro USB port (this should be Type-C as well) for PC control is not aligned with the housing cutout, and I cannot insert a cable. Cannot simply be pushed in to place. It appears the housing was machined incorrectly. Secondly, the display itself is horrible. Typical low quality TFT display with poor color and the worst viewing angles possible on an LCD. This is true with all Fnrsi products. A few dollars added to the consumer to put a much nicer IPS display would be acceptable to most I think. Even as much as $20 for a nice AMOLED. Thirdly, as with other Fnrsi products, the button navigation could not get any worse. It is not intuitive and you actually end up using the manual just to do basic navigation. With as many buttons as this thing has one it, there is no excuse for the poor usability. All that said, I would have given it 4 stars if it were not for the misaligned USB port. That is a big 2 star hit IMHO. I would be willing to pay $100+ for this with an AMOLED display, USB Type-C for PC connection, a USB C output on the front. As it is, is feels cheap, and not well executed.

I learned about this product from another reviewer and decided to give it a try. So far it has worked great. In addition to supplying a stable voltage, the device provides a good bit of useful information, particularly for those who like to play with electronics. It's definitely a good device to have in your toolbox.

I was looking for an ultra small, usable power supply for my field work and found this. It really does help gat it claims, and pumped 4A at 19V with ease. For an hour. I was waiting for something to get hot or fry, but it didn’t. Nice accurate controls and many configurable options. One thing to know is that you do need the optional wall plug to get the higher voltages. I didn’t understand that at first. Otherwise, it will reference the highest voltage you supply it and will reduce from there. It’s really small and well made. I own many of their products and this did not disappoint. The DPOX180H is so good, I bought too!