i have 9 rkcstr drivers one is for a br diode 38ma and the rest is all diffrent for red diodes i have a few that i hooked my diode to just to test them out and the rest is brand new never used
Just to help Jake out, if you use one, make sure you get the wire polarity connected correctly. These were before I started using the black/white wire, so the positive wire has a white stripe on it while the negative does not. Otherwise you risk damaging the driver and laser diode by connecting them wrong.