My commuter has threaded mount points halfway down the fork for a front rack. For a number of years I just used P clamps to hold a pair of AA flashlights (one on each side). The vibration made it hard to keep them aimed, and I think it also led to contact problems with the battery, I'd have to reach down and tap them while riding. THey weren't the highest quality lights around (imitation mini maglights). But they were great to light up what was immediately in front of the bike. Much better than the helmet light, as you could really see the shadows behind road trash.