Yes, those are the consumer ones that are generally not individually addressable. I'm talking about WS2811 LEDs. Pretty much every WS2811 controller board is 5v, because there is only one manufacturer and that's all they make. The strips with 12v have a resistor on each one because people like to use 12v since you can power more lights before you have to inject more power.

Like this:

https://wallyslights.com/collections/12v-pixels/products/12v...