Ideal settings for Lightsheer Duet?

I am getting laser under my chin. I’ve had 2 sessions and have had tons of shedding so I’m assuming things are going well. Does anyone know what the ideal settings are for using the Lightsheer duet? The technician said it depends on a lot of variables including my skin color, tan, reactions, etc and that she will increase the settings appropriately, but she’s not giving my too much more info.