Good job, though I think it appears dimmer than seeing one in person. I got mine Friday and on the lowest setting it lights up a fair-sized area (10 ft, maybe more) around the spot well enough to see details, from that range. It's probably perception or video camera, as was already mentioned. Mattman's suggestion is a good one. Without some type of reference, the variation in video cameras would have too much impact to be able to do comparisions.
Still, your video really does shows the range of the U2, even if the low end isn't really all that low.