Thanks for the info: As stated before I will be using a solar panel and a fairly large passthrough battery. I have a 20 watt plugin charger for a backup also. Forumslader appears to be able to set up their USB charger to work with a switch so I can run the lights or charge. These decisions on light and USB charger hinge on waiting for more info and availability. The better light is most important to me. I looked at the photo of the Bush&Muller dyno high beam light and It looks like the better light so far. When I camp I like to go to sleep by 2100 hours and hit the road by 0300 hours.