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Old September 14, 2013, 10:23 PM   #6
SamNavy
Senior Member
 
Join Date: August 28, 2011
Location: Kauai, HI
Posts: 421
There are dozens of flashlight companies doing absolutely amazing things with current generation LED and battery technology.

How about this... just a pinch bigger than a chapstick. I've got one, goes with me everywhere, nothing brighter for the size:
http://www.eagletac.com/html/d25crc/index.html
You can use a 3.7v RCR123A battery in this torch to direct drive the LED and get 750 lumens. You only get about 5 minutes at that brightness before it reaches a thermal cut... but plenty of time to escape.
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