Recs.
Updated
The Cycle Torch Shark 500 is a USB rechargeable set of lights (head and tail), that emits 500 lumens of light on the high setting. It has 4 lighting modes, and runs up to 30 hours on the flash setting.
SpecsUpdate
Pros
Pro Illuminates the road very well at night
The Cycle Torch is so bright that you might even be concerned about blinding passing pedestrians. It emits 500 lumens on the highest setting. The beam is well angled, so that you can both see in front and to the sides as you're riding, Letting light out on the sides also lets drivers see you better.
Cons
Con Mounting can be tricky
The rubber mounts are basically straps that hook around the handlebar and hold the headlight in place like a band would. This allows the light to slide forward or backward, especially on bumpy roads. Sometimes, the rubber mount can break, but you can get replacements from their website.