I have this light that I use for camping, which puts out a pretty hefty dose of light, it's a headlamp and I've had nothing but good experiences with it.

Four LEDs, with three brightness levels (plus flasher), and an alternate Xenon bulb with three brightness levels possible. You can also swap between three different xenon bulbs, and it has a flashing colored indicator to tell you roughly how much battery life is left.

http://www.rei.com/online/store/Prod..._SHOP_BY_BRAND

So here's what I don't understand: why in the hell does it only cost $65 when bike lights are comparatively ridiculously expensive for fewer features?

Has anyone hacked a hiking headlamp to use on a bike? Good results/bad results?

It seems like it would be a good solution, I'm just trying to get advice and see what might be a problem with retrofitting it to use on a stem or handlebar mount (maybe with a bento box to hold the battery, with the headstraps removed).