Okay, pretty much going with what I mentioned yesterday, seems like the aforementioned CT’s will do a fine job. This comment from overeasy pretty much sealed it
You should stop worrying. I know that another site consistently harps on matching CTs to their full range, and disavows accuracy at the low end. That has not been my experience with IoTaWatt.
I just grabbed a couple of LED bulbs labelled 10W and screwed them into a test jig with an ECOL09, HWCT004, ECS1050 and the ubiquitous SCT013-000.
With one bulb, they all say 10W and occasionally one will go to 11W briefly.
With 2 bulbs they all are a solid 21W.
The CTs have been the goat for poor lo…
