Yikes, it's BlackLight! I had no idea this joker was still around. For reference: this was popular snakeoil on USENET back in the 90's when I was in college. This is some really crufty nonsense, and I'm kinda shocked it's still being recycled.
The theory has not changed much since the original work by Mills in the 1990s but the experiments and engineering have overcome a lot of hurdles and there are now many experiments that match the predictions of the underlying theory and prove the existence of hydrinos.
Reading up on the company on Wikipedia, it seems to be pretty much exactly that.
https://en.wikipedia.org/wiki/Brilliant_Light_Power