Originally Posted By: xbanker

• Include LED micro-flashlight as backup (two is better). They’re small, light, reliable, and inexpensive, with good run-times. Both Photon X-Light and Inova Microlight are about $6; 12-15 hour run-times with multiple brightness levels.

AFAIK, the old Photon X-light only has an ON/OFF switch. Single brightness level.
Now, the new X-light Micro offers multiple levels of brightness.



Originally Posted By: xbanker

• A small 2-level AA-powered headlamp might be worthy of consideration as a back-up light.

It IS MORE than worthy of consideration !!
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Alain