@2bbeacdc 

manker mk35.  i've had it for almost 7 years and have not managed to break it, i've never seen a flashlight utilize batteries so intelligently (it has charge controller onboard) and it drains everything evenly.    there's even a mode where you can put it into "moonlight" and it has 21 settings of that, think corner of the room, pointed at the ceiling emergency stuff, runs for weeks...

they have an MKII version out now, 

here's the page on the mkII:  http://www.mankerlight.com/manker-mk35-ii-high-power-long-throw-led-flashlight/ 

 @102f91ef wow thats serious business right there.