Which one to use for watts logging?

Greetings ,

I just installed a qubino flush relais , and I want to log the watts usage.

But I have 4 options to check in the datamine Gui:
actual usage
KWh
KWh reading
log
watts

What is the difference between the 4?, except “log” , all should be the same… no?!?

Thanks,
Cor

Hello,
I have the same question too
Grettings from Germany
mistertp