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

Product is as described, but tens to run very hot at 60 amps ( curing smell coming from housing)

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.

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.

Quick delivery, install for led panel. Test for one hour no problem no hot. Good product.

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)