Sure about that? I have a 600-lumen light with a fairly floody beam (namely, a DiNotte 600L), and my ~270-lumen Q5-powered Dereelight DBS kicks the crap out of the DiNotte in actual use. The reason it's better, is that it actually gets the lumens to go where I want them (straight down my lane), not spraying them all over the place in a flood pattern for "wow" effect. At this point, I don't even bother taking the DiNotte 600L along anymore. It got voted off the island

Runtime's pretty good on the DBS too, about 1.7 hours, long enough for me to actually get all the way home, instead of just partway I now have an R2 pill on the way for even more output. Probably about 300 lumens