How can you tell if each driver delivers 900mA? In what position of the potentiometer will provide 900mA?
I want to buy this driver and the 2W laser diode, but can I use one single driver at 1.5A output with 3.6V input?
Can I expect to reach about 1.5 - 1.6W output (and maybe save the diode from burning out)?
If you get a single flex set to 1.5A which is the max of the flex you can expect around 1.3W-1.5W with an Aixiz lens depending on diode efficiency. But you will need to sink the driver. See this thread.