Quote Originally Posted by Catrin View Post
I am debating this very thing - would a helmet light be better for my country roads - or a handlebar mount? Both? My primary concern is being able to see where I am going - though of course it helps to BE seen - but I know that a lot of bike lights being sold are to help you to be seen by others - not necessarily for riding unlit country roads. I need to see potholes far enough away to do something about it...
On-road, I find that a high-output bar-mount light is enough to see where I'm going. I don't fuss with a helmet-mount light unless I'm in singletrack.

Right now, I'm still using my ~500 lumen light for commuting. I won't switch to the ~100 lumen light until it's at least twilight or lighter when I leave in the morning. One of the downsides to being underlit is that I have to slow down in order to see things in time to react, and I don't like that option when I'm trying to get to work on time

Check out MTBR for lots of good light info: http://reviews.mtbr.com/blog/category/lights-shootout/