I just received a 4 pack of Sylvania Smart+ Zigbee outlets. they seemed to work really well, but I’m noticing that 3 of the 4 have turned off spontaneously after 30-90 minutes. The smartthings log just shows the power is off, but doesn’t say why. The last one is still on, so it may not be expected behavior. I have a pretty low load on all of them (Christmas lights on 2, LED 15-watt lamps on the other 2), so don’t know if that makes a difference.