Posted by: Blue
I have two flashlights. The main one is an XTAR TZ20 820 max. lumen tactical flashlight. It runs on either 2 - CR123 batteries, or 1 - 18650 or 1 - 17670 rechargeable battery.
The other is a Surefire 6PX Pro with a 320 lumen high and 15 lumen low output. I keep the Surefire on the shoulder of my vest for hands free lighting while reading licenses and writing in the dark. It runs on the same batteries as the XTAR, but will not accept the 18650 cells.
I always keep 2 spare batteries in my vest. One for each light.