Few years ago, I bought this led strip directly from a china store. I don't remember which one and I don't remember the ref of this item :( So i don't know how to drive it.
As you see on the pic, I can't read the ref number on the IC because of the semi-translucent plastic...
Maybe one of you know what it is?
But why 4 wires?
Ho yes. I think you're right.
I'm gonna try them.
Power, ground, data, clock.