I think they all use a 1.25 Watt emitter, and the company refuse to say who provides it. They do tend to vaguely claim that it's the equivalent of a 3W due to clever lensing
As for brightness, I think it depends which version you get.
IIRC the standard police tech focus (hocus focus) was rated at about 60 lumens, whereas the 2AA V2 Focus is about 45 lumens.
I would expect that all the 3AAA lights work out similar to the hocus focus, and all the 2AA lights similar to the V2 focus.
There's limited info around on these lights, as the manufacturers seem to be cagey about it.