Used these for Ledenet RGBW strips and they work fine. I also use an H801 controller between them and the bands so they can be controlled with SmartThings/Alexa. I had to cut the electrical connectors as I needed very little between the controller/transformer/electrical wires. I didn't get any documentation in the kit, which would have been nice, so I just did a couple of tries to figure out which electrical wire and which control wire would work. If it's the right price for your needs you probably won't have any quality issues with them, I bought three of these and each worked flawlessly.
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