Hi!
It is not possible to use a decimal value at the moment (maybe submit a feature request?).
I had a similar issue with the room temperature.
In your case, can’t you use power instead of current?
Indeed, 0.15 A corresponds to about 330 W if you’re on 220 V (P=U*I)
Indeed we only handle integers at the moment, but it shouldn’t be a problem to support decimals, I’d welcome a feature request (or a GitHub issue — in this case it’s not really a feature ^^ )