I am a big fan of generator powered lights on my bicycle that generate power from the spinning back wheel, but I will be the first to admit, an old generator can slow your roll, especially pedaling up steep hills. The answer is the Owleye solar LED. This weather resistant sleek silver LED is about the size of an IPod (the 60 GB kind) and comes with three various mounting mechanisms so you can choose how and where you want it on your bike. The solar array mounted on the top of the light looks cool and requires only two hours of sun for three hours of constant light or six hours blinking. At first sight, I was concerned about the brightness of the one LED encased in clear plastic, but all my doubts have been put to rest, this bad boy puts out more light than my battery powered bike light (which we all know eats batteries like an energy monster). Set in blinking mode the Owleye Solar LED strobe light saves energy and is most definitely seen coming down a bike path.
Check out the Owleye Solar LED