I assumed the 5V PWD output was to drive the low beam of the LED spotlight, and in a bid to simplify the new circuit I wanted to replace with a 5V linear regulator.
In my tests, this hasn't worked. I've been trying to understand why, and I'm thinking that the LED needs 12v to run, the 5V output from the PWM is 12V, but just cut up so it's only on for ~40% of the time. My constant 5v output is not enough to drive the LED, so it simply won't turn on.
Would this line of thinking be correct? I know the LED works with 12V, should I be looking to replace my linear actuator for a PWM setup like I think it used before?
Some pictures of the LED, and the PWM chip on the control board: