Originally Posted by KenshiBiker

Depends on what you mean by "enough". The Lumina on medium will light up the path in front of me well enough that I don't over-ride it (I think - it's been a while since I tried the Lumina alone). If there were no sharp turns on the MUP or the unlit streets I ride in on (or if I were riding slower), it would be "enough" . . . for me. However, as I said in my previous post, there are other reasons why the Lumina alone, mounted on the handlebars, isn't "enough" for me (note: it might have been "enough" by itself if I mounted it on my helmet - tried it once after I got the Dinotte, but the weight was very uncomfortable).

Side Note: Two of my co-workers have Cygolite 400s (or 450s or whatever it is). Anyway, they got them for the after-work rides I lead (to get them ready for an upcoming 75k ride). Their Cygolite is bright enough on the unlit MUP for them, though the beam appears narrower than my Lumina, such that when I ride alongside or behind them, it's a noticeable improvement even without the Dinotte switched on (we ride pretty slowly so over-riding the beam isn't a concern); once I turn on the Dinotte, there's no comparison.