If the white W1 is tweaked to 4.9 amps turbo and I swap in a green W1, it appears from djozz's tests here: https://budgetlightforum.com/t/-/56233, about 7 amps would be the ideal level for turbo.
So, anyone know how the K1 driver can be tweaked up? Here's a couple pics of the driver:
I reviewed TK's cfg and hwdef files for the K1 and it shows one channel of output only, and turbo is set to full scale at 1023. PWM is used to control an opamp, not the LED output directly which makes sense for this kind of driver. So I don't see any way to bump amps from the firmware - must be a hardware mod/change.
I'm guessing it's an R10 swap, to a lower value, but not sure.
I could try asking/reaching Hank I guess.
I know pin #16 (PB3) is PWM output to the opamp to control the brightness level. Not sure if U2 or U3 is the opamp.