Acxico 5Pcs Board Module Mini AC-DC A1367 V1368 AC-50270V DC70-390V

I bought these because I wanted to add some cooling fans to a prototype station I built decades ago without tapping the existing power supplies. After a little measurement and thinking, I found a good place inside my already packed device to locate one of these and wired it up to power two internal cooling muffin fans. I just connected this to the ac line upstream of my power transformer. The service line level input is very convenient. The units are small. Very company so great for space savings. And they’ve been powering the fans without any issue. Saved me a lot of time from redesigning or modifying my existing circuits.

Have used these to substitute battery boxes for fairy Xmas LED lights...battery changing gets too expensive during normal Christmas season (I deploy probably 20 sets of LED lights; 120+ batteries used each Xmas season...and the hassle of changeout inside set Xmas displays). Found the boards well made; input and output labels quite clear and easily soldered to. Best thing is the green LED which lights up when in use so don't have to keep using DVM to test. LED also serves to indicate when wiring to low voltage is incorrectly reversed...LED won't light up. Nothing shorts out but no DC voltage flows and LED not lighting is a great indicator! I've got about 8 more set-ups to convert for next year and will use same product.

Worked great for my project. Had to convert AC to DC for my electronics and wanted to do it in the case rather than with a wall brick. This did the job fine

These just can't keep up on the power. Although they do output 5v, asking them to supply more than a couple milliamps it drops the output to 2v. Tried powering a current sensor and esp32, no way. As soon as the esp32 is connected the output drops to 2 volts and won't power it up. I guess it would be good for powering an extremely low draw device.

I like to power the filaments in my tube amp projects with dc voltage. I used these for an 01a tube project (first commercially available tube). It worked since they only draw .25amps. However they were a bit noisier than I would have liked. I’m sure they fine for less sensitive projects. Keep in mind these are rated at 700ma and they are tiny!

I love that this power supply is super small and will fit inside any enclosure that I 3D print for my IOT devices. I use, primarily, ESP32 & 8266 with various sensors to build smart home devices. Most of the devices won't operate for very long on battery and I started running out of 5 volt USB chargers for them so I ordered these. I usually have access to line power in areas that I install these little guys. Now...power is incorporated to each device. I do not recommend building and installing any mains-powered device if you don't, thoroughly, know what you are doing! I have been doing electrical engineering level work for a very long time and have a complete understanding of potential failure causes and corrections, as well as, mitigating possible fire/shock hazards as the result of DIY electrical devices...EXCELLENT PRODUCT!

I used these power supplies with micro USB pigtails to "hard wire" some Wyze cams in for our new chicken coop. I used 22awg wire for the 120VAC side because Wago (lever nut) connectors accept 24-12awg wire, and the 22 gauge fit nicely through the holes in the power supply board input contacts. So far, working great on 2 Wyze v4 cameras.

Good for activating project relays.

Lo recomiendo ampliamente.