The channel with warm color temperature LEDs works quite well. It's time to run the second channel.

To do this, I populated the LED driver PCB with the remaining electronic components. This is what the driver board looks like. Only the Attiny25 microcontroller is missing. I will install this component at the very end. During testing, I use an external PWM signal generator. I use an Arduino Nano module for this purpose.

The first attempt to run the cold channel gave a positive result. Also for this channel, as in the case of the warm channel, correction of the value of the output capacitor C19 will be required.