Cygolite makes several self contained, but with replaceable batteries (most don't have that capability), rechargeable lights, from 150 lumens to 600 lumens and others in between, and all will burn for at least 2 hours on high. There are 3 ExpiliOn lights and a Trion, please see this site for details on each: http://www.cygolite.com/products/index.html

Your best prices on any of these lights can be found on Amazon. There is also a ExpiliOn 250 that is no longer made as of this year but their still found on Amazon.