I am building a 2w m140 laser, but I wanted a high and low power mode so I attached one 500ma driver and a 1.8ma driver, however when I change between them they are exactly the same brightness. Does anyone know why that is happening?
I am using 2 14500 batteries to power it. I tried it with two 18650s too but I still get the same results. Do I have to use 3?
I am using 2 14500 batteries to power it. I tried it with two 18650s too but I still get the same results. Do I have to use 3?