bumping thread with relevant info:
Here's a comparison of the output. I went to a family's avocado ranch out here in CA, and waited for it to get hella dark, then snapped some pics of the difference in output. My camera isnt the best, and it isnt quite as adept at night pictures as id like, but once you see the contrast, well.. you will understand.
Halogen Projectors (these are as powerful as the stock halogens that came with the headlights but are not as omnidirectional, either way, you can see the output isnt great. These are full beams, so no cutoff plates.
This is low-beams on the bi-xenons:
And this is high-beams:
Again, my cellphone isnt a pro-grade camera, and obviously the halogens arent as bad as they look, but i can say that the bi-xenons are even brighter than they appear as well.