No, I am measuring the diode current (between the Flex and the diode).Where do you measure the current? Between battery and driver, or between driver and laser diode (NOT RECOMMENDED)?
I'm not familiar with the flexdrive, but I think the input current is NOT = the output current.
Also, remember that every diode has a different efficiency, so the correspondance of mA -> mW might not be the same for your diode.
I am not too concerned about the output, I'm just curious as to why I can't put more than 1.2A through the diode.
I tried powering the Flex from my bench power supply, but that was not a happy experiment, I'm sticking to batteries