ALITOVE 5V 40A DC Power Supply 200W 4.5V 5.5V Power Adapter 110V/220V AC to DC 5 Volt 40 Amp Converter Low Voltage Transformer 2 Output LED Driver for WS2812B WS2811 LED Strip Pixel Light CCTV Camera

Easy to use and works great. The only thing it could use is maybe a way to mount it. I placed down aluminum led channel and a tie down strap with staples to mount three of them to a board. The channel was so air could flow freely around the power supply. I have 6 strands and 2 controller being ran by them. Definitely recommend 18 gauge wire when running ws2812b continuous. I ran 22 on one side and 18 on the other. You can guess which side had voltage drop. Great product. I used a extension cord to power them by cutting off the female side.

Not sure about longevity yet, but it works well in the tests I made so far.Just wish the output calibration would allow to go a little higher than what it does now (max on mine is 5.6V). The reason for this is I had to inject 5V at distance over 6m. Since DC voltage drops over distance, I had to use thicker wiring to deliver close to 5V at the injection spot. If the power supply could allow to output slightly higher voltage, I would've been able to use thinner wires (wire size in this project makes a difference)

I own a few of these Power supplies and I am happy to say they work great in all of the LED lighting projects Ive used them in. Sturdy built to last.

I purchased two of these back in January 2019. However one of them failed yesterday after 24/7 running since I received them. The second one has been online 24/7 since about February 2019.To be completely fair and honest, I want to say that I feel these supplies are very well built and very worth the money. I would and I will purchase them again and I have.The one that failed after 3 months was supplying 16 Small Board Computers that use a 5V 4A plug-in power supply. However, those SBC's typically run at 12W under full performance governor load so it's fair to say 12w x 16 units = 192 watts. The P/S is rated at 300W so those 16 units should be able to pull as much as 18.75 watts continuous.Voiding the warranty I took the lid off of it and one burned component RT1 was damaged from heat. Touching it with my fingers pretty much turned it into dust and fragments. However I will locate a replacement component and replace the burnt one and see if I can resurrect the failed P/S.In the meantime, I ordered two more of these supplies and I will connect one of them exactly as the failed one and we will see how it goes.Hopefully it was just an infant life failure of the Thermistor and the new supply doesn't fail and keeps on working. I'm an EE and I've seen a lot of shoddy boards and components over the years, however the quality of these supplies is quite good and respectable.I didn't hesitate to purchase two more.

Powers ws2812b LED lights perfectly. The voltage output can be tuned down to about 4.7 volts on mine. At 4.7 volts the Raspberry Pi 3's 3.3 volt signals are interpreted correctly for a 5m (150 led) strip. Assuming my collection of ws2812b LED lights will grow, I opted for this over-sized power source.I was happy to confirm that the fan only comes on when needed. For my low power consumption in a cool environment this power source is 100% silent.It does not come with a power cord. I cut the end off a spare computer plug, and attached to the provided terminals.I plan to use this for powering LEDs and as a bench supply for breadboarding. Thinking ahead I purchased power terminal connectors that fit my existing breadboard adapter, and used it's matching connector on both ends of my LED strips.

it absolutely worked for my project. An overkill at 60 amps but for the price why not. Volt tester indicated 5.01 vdc. Can be adjusted but i did not.

train layout

I adjusted voltage to handle a few miners and a few hours later they all shut down. Turns out the the device kept voltage fluctuating and my miners all stopped work. Buy a more reputable brand, this is now a giant paperweight ugh.