I have 2 LED strips connected in parallel to the same LED driver (driver is constant current + constant voltage). I have got an Arduino controlling a relay module that switches the lights on or off (on the ac side of the driver - INPUT).I know ideally it should be each strip with its driver, but I can't change that at the moment.
I want to monitor this system with a current transformer (current sensor) but I don't know which side should I monitor. If one of the modules switches off or gets damaged will the output of the driver stay constant even though the load has changed (I'm assuming it does, might be wrong????). What about the supply to the driver? If one of the modules goes off will the driver pull a smaller current from the mains?
These are the sensors I was thinking of using or something similar: