Powertraveller Lightmonkey - $19.99

A waterproof, shockproof portable five-volt USB light powered by your Powermonkey Explorer (sold separately). It comes with a rubber bracket you can attach to a tent pole or bicycle bar. An included head strap lets you wear it for convenient lighting as you move about in the dark. It also comes with a magnet used to attach it to your clothing. An included extension cable is included so you can use it as you charge it. - $19.99