Well they can certainly throw out the light. They come with the option to tap into the High Beam so that they are emitting at 40% on low beam and full on high but I decided just to wire them up so they are always on full as most of my riding is done with lowbeam on. They were far to bright to look at like this so I've since tapped into the highbeam for the variation.
The light they throw is is somewhere between a spot and a flood but it's very predictable so easy to set correctly. They throw light further down the road than the stock headlights, with just the Denali's on there is more light on the road than with just the headlight on which I was not expecting.
There are two things I don't like, they are the switch it ships with, feels very cheap and doubt that it will keep water out, second is the bulkyness, I've had to remove the fusebox I put in to fit all this in so not I need a new place for my fusebox. Will look further into that next weekend.
I'll put pics up when I learn to use this new camera (bought me a nikon d90 for a tax time present as my old camera died last week, still learning how to use the thing though.)