In the picture you posted here, I see the old style with like 15 leds and new style with 9 leds, yes. If that 9 led lighthouse is not the same 2.0 lighthouse, then maybe I am talking about something else. I had 15 led 1.0 lighthouses from my original purchase in 2016, and one went out. When i got the first new 9 led lighthouse it was labeled as a 2.0 I thought, and did not work with my other lighthouse. I had to purchase another 9 led lighthouse to get it working.
Lighthouses are syned IR lights basically, why would the vive pro lighthouses be that different? Are they incompatible for design or marketing reasons? We need the VR hardware to evolve beyond this 3 vendor crap, into something like the PC market itself, so that we can build the VR mask modularly.