Inevitably, if you are traveling by bicycle, you will get caught in the dark. Whether you are just getting an early start to meet the day’s mileage goal, or you get lost looking for that camp site. Either way you will wish you had a reliable, efficient and powerful light source. One on the front to light the way and one on the rear for safety.
There are three options for power sources for your headlights. And they each have pros and cons.
Option one: Lights powered by disposable batteries.