5V 15A 75W Power Supply 100V-240V or 110V - 220V AC to DC Adapter 5V 15 amp Switching Converter 5.5x2.1mm Plug for WS2811 WS2812B WS2813 2801 LED Strip Pixel Lights

Used to power LED's for a 3d printer. Worked great and still plenty of power to spare for more Mods.

Recommend

I inadvertently destroyed the adapter for a Halloween prop I own. I contacted the manufacturer and they said this one on Amazon was correct and identical to the one I used. They were right. The prop works perfectly with it.If you're considering this power supply for usage, be sure the voltage, amperage, and wattage are all appropriate for use, and that the jack size is correct. If everything lines up, you should be happy with the purchase. If you pick this one randomly and it doesn't work or fit, don't blame the power supply. If you confirm all those points and it doesn't work, THEN blame the power supply.

Got lights connected and everything look good until I set the color to white and turned the brightness all the way up. There is a significant difference in color starting about 1/2 way down the strip. The first 6-8 ft they were bright white. Then in got progressively more yellow (warmer) as you get farther from the power source. I have order a 30a to see if I can use the lights. (More info… when I used a higher wattage power supply the same drop in color was noticed. So the problem is more with the usage than the power source.)

I bought this 5v 8a power supply to power my Atomic Pi (API). Before plugging it into my API, I used my Fluke multimeter to test the voltage. I got a reading of 5.39v. The API documentation says not to exceed 5.2v. Despite the fact that it exceeded the recommended voltage, I decided to try it anyway. I connected it to my API and it booted it up without any issues. While powering the API, the voltage reading is 5.15v. This ends up being perfect since slightly higher than 5v is desirable but exceeding the maximum safe voltage is not. My API has been running 24/7 for a week now without any issues. I will update my review if anything changes, but so far I recommend this power supply. Make sure you use a multimeter to measure the voltage before using it for your project since there could be deviation from one unit to the other.

No good for arduino/LED applications.There is a lot of power fluctuation in these. The LED flicker in my arduino/led project renders these unusable even using resistors to stabilize the data line. Unfortunately it's too late to return them. Not happy at all with this purchase.

So I needed 5v and 10 amps x2 and 5v 6amps for 3 projects, actually one, but couldn't find 1 power supply that's large enough and fairly inexpensive, but these were pretty cheap and had little plugs that implied they'd be good for DIY projects. So put first line together, 10 modules, each draw 1 amp when working and next to nothing when idle (measured). I plugged in the first module, couple flickers, then nothing, checked all wiring, attached an existing 5v supply from something else, everything lit up. Problem traced to the little dongle that split the power connection into 2 screw taps. Repaired it myself. -1 star. OK, everything is showing idle now, 10 lights. Tested each module 1 by 1. Everything works, so no problems with my wiring or any of the modules. Activated 4 of them, no problems. I did not check voltages at this point as I assume foolishly that 5 volts out of the supply with no load (tested while checking the first issue that I already repaired) would maintain level at 4/15ths of rated capacity. Activated 2 more modules, now showing 6 amp draw, but there are some odd flickers on the idle modules. Grab the multimeter again. 4.26-4.39 volts. Well I have 3, probably got a bad one. That happens.So I switch. No lights at all. 4.11 volts. Since the modules step down 5v to 4.2 anything lower than that makes them not work. So one supply will operate 6 amps, one won't handle 5. I haven't opened the third, I may return that one. 2 that won't hold just a bit over 1/3 their rated current, not good, at least for my application. May work well for something else. They seem stable at lower draw so I gave them 2 stars for that.Later Edit: I did return the other 2, but because I modified the end on the other 1 I kept it. Well I needed another smaller 5v power supply with lower amperage. This works well in an application drawing less amperage and an uneven load, so it's not complete junk. They get moved up to 3 stars. The little connector was perfect for the subsequent application.

This is a solid & substantial power supply. It is high quality & can handle everything 5V that you could need it for. To be honest, it almost feels like overkill for what I am using it for, which is just to power a strip of addressable LED lights that I installed around my daughter's bed. It far exceeds my intended use for it & I'm sure it would yours too!