After I did my first night/group ride, I went looking. Good god, they sell lights for 400-700 bucks! I'd bet you that halogen I got 25 years ago for my motorcycle put out a hell of a lot more light on the road.

They are HID lights and I actually overheard severl bikers complaining because there were folks with such light that can easily blind pother bikers..

Anyway, I have some small, el cheapo LED flash lights (8 LEDs, 3 AAAs for voltage), so I rigged on on my bars. Not bad, but not great. Probably best to use 2 (I think they cost me all of 5 or 6 bucks each).

BUT, mounting it on the bars gives a fixed view. Next time, I'm going to rig two of them onto my helmet (I can do that wthout may damage or permanment change to the helmet). Somehow, I think this might be a better solution as I can very easly make sure the light falls where I want it.