This project is a mini lantern-style, electronically regulated, super bright rechargeable flashlight. It outputs about 120 lumen (slightly more than a 6D cell Maglite) . Its also much lighter in weight than a Maglite or a 6V lantern and can provide about 2 hours of constant brigtness illumination.
http://www.geocities.com/pest3125/lantern/lantern.htm