& if your main headlight dies, you'll have something to see the rd with. was kicking myself recently when I was left in the dark w 3 miles to go

We've never put headlights on our touring bikes. We use Night Rider lights on our everyday bikes, but seldom ride after dark when touring. We used our headlamps for the few times we needed to ride in the dark to be visible, and they do provide a little illumination for riding.

http://i783.photobucket.com/albums/y...l/IMG_1921.jpg

Another brand to consider
 

I've been really impressed with Coast brand flashlights and headlamps. All their lights come with a lifetime warranty. They're not well known so I thought I'd put in a plug for them.
https://coastportland.com/headlamps/

Their smaller lights aren't set up for rechargable usb though. Their cheapest light that's rechargable has three settings from 530 lumens to 65 lumens and it's $105. The 4 setting 400 lumen headlight I am curently using came in a $28 two pack at Costco and takes 3 AAA bateries.

I don't carry a headlamp with me. I don't see the purpose. I carry an empty 40 ounce PB jar with me for a piss bottle so I don't have to get up overnight. I generally camped out a fairly well lit area anyways since I'm always camped out around town somewhere. It's just extra added weight and something else to go wrong.

I will use my leyzone macro in camp. And put it on the bike next morning. Takes 1 sec.