Ah Sh*t-My Trustfire X6-Or find me a 3 volt 20 amp LED!

You should be able to lower output to the SST90 by increasing the values of the driver’s current sense resistor/s. Basically you’d be increasing the resistor values to lower the output to the emitter. AlexGT implemented this method to increase output current with lower resistor values (post #47 in this thread).