How to check the power consumption of your lights

Curious to see how much power your lights are using? Want to avoid any surprise with the bills?
The power consumption feature, on 'Settings' page, ‘Energy consumption' session,, lets you do just that.
The first figure you will see is the global, aggregate consumption figure.
Below it, you can access a breakdown by hour, day or week, still for the entire home.
Then there is a pie chart showing you which room is using most power at this very moment (live consumption).
Tap on "Show more details" to access the exact figure for each room or light.
You can see for how long each light has been on or in standby, and how much power it is currently using.

Why there is no power consumption displayed for my device?

No reference data
If your device never seems to report any power consumption (app shows N/A or 0), it is possible that the reference measurements for this device haven't been completed yet.
To compute the power consumed by a device, WiZ system uses the regular status report of the devices to the Cloud, associated with reference power consumption data for each mode and brightness, measured in laboratory.
As an example, if an A19 bulb reports "Sunset mode, 50%", WiZ will know what is the power consumption in that mode and brightness for that particular model, and display the figure in the app.
For certain models, the reference data may take longer to gather. If WiZ has no reference data available, it will not display any power consumption in the app.
Remarks: Above section is NOT applicable to products that come with power meter itself, e.g. Smart Plug (manufactured after Oct 2021)
Disconnected device
If a device is disconnected from the WiZ cloud, it is not reporting any status, which prevents WiZ system from computing and displaying and power consumption data.
Smart plugs
WiZ smart plugs that manufactured before Oct 2021 do not feature power measurement, and as such will not indicate any power consumption in the app.