Thanks, that’s interesting.
It’s strange to me that the chips on the LED’s themselves are controlling things… But I know that’s how it is now… (I’m coming back to electronics after about 20 years… I was an EE in my youth… Somehow started an IT business and the EE became a hobby… then I got busy w/ kids and life, and EE became non existent)
I hear your brother I got kids to. Not much free 
Twilight