I purchased these lights and installed them on my old truck, the headlights on it are not that great and I live in the middle of no where so being able to see what is in front of me is very important.
Within the first week or so of installing and using these lights I was able to spot and slow down for 3 moose, 2 cows and 1 bull, as well as multiple deer, the instances with the moose are what made these lights pay for themselves, I was able to see the moose walk out into the road and slowed down enough to let them cross, if I did not have these lights I would have came close to, or hitting them.
I am very happy with the build quality of these lights, my only (cosmetic) gripe is that the Halo around the edge of the light cant be turned amber simple because I think it would be cool to be able to connect the amber halo to my turn signals and marker lights, but that has nothing to do with the overall usage of what these lights are built and designed for: lots of light out the front of your vehicle.