Inside DOMRAEM DOM-WLE-ADM

This is the last one from that Ali Express order…

Interesting, can you take more pictures of fet/chip? For example chip in bottom left looks like type c controller, curious if it’s ch224 although it looks larger

That one? It’s a CH340K - this controller is only 5V without PD option.

Awesome! I know some of them can do 24v pd which is crazy.

Btw how are connectors? Any idea what they are?

They’re OK and do their job. You need quite some force to open them, and they hold the cable well.

DOM-WLE-18P 4-channel WLED device, supports PD 5V step-up to 12V and 20V.