My Bell lights seem to be enough in the suburbs, where there is some street lighting; my neighbors have noticed me from a distance and commented about my lights, saying that they thought I was a moped or motorcycle, and a couple of walkers have shielded their eyes; on smaller streets, drivers have slowed down, noticing me.

I have these lights: http://www.amazon.com/Bell-Lumina-Li...+Bicycle+Light

I'd prefer to have a slightly brighter, rechargeable headlight, though.