I measured a number of devices with an ELV Energy Master, which is known to be quite accurate.
These are the results:
Device off on
TP-Link HS110 V2 1,2 W 1,8 W
TP-Link HS110 V3 1,0 W 1,8 W
AVM FritzDect 200 0,5 W 1,3 W
The measurements were done after the devices were configured and fully booted.
When unconfigured, the TP-Link devices used more power. The AVM device was not tested unconfigured.
As you can see, power consumption also depends on the hardware version of a device.
