Originally Posted By: hybrid8
The SMT resistors say "103" on them. The ceramic ones are 390 ohms according to an online calculator. 4 bands, orange, white, brown and gold.


Okay, so this multiplies the control signal by:

10000 / (10000 + 390) = 0.96

Mmm.. that hardly seems worthwhile, but, okay
(the resistors also provide some protection to the controller).

And what is the (full brightness) control-voltage you see, on the input to the larger resistor from the control circuitry?

And what is the voltage (with respect to ground) that you see on the rewired Source when the LEDs are switched completely "off" by the controller?

The idea is that we then modify the first resistor (if possible) to achieve a difference of (0.96 x control-voltage) between Gate and Source.

Cheers