We use these on a Samsung UN46C6300 which weighs around 35 pounds. We also have a Chromecast, a FireTV flash drive, and a Steam Link connected to the TV and attached somehow, so the combined weight is probably just under 40 pounds. I buy standoffs to attach to the bottom of the TV to screw into the open holes for a more traditional mount so it touches the wall and puts less stress on the screws of that mount.
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