Hi Samo,
I use the Green "supercharged" Photon II (Walt Welch put 2 CR2032 batteries in it) or a White Photon II (has already 2 CR2032's) and these give me the most light per weight.
I'm currently testing a pre-production Teknolite flashlight from Traser (http://www.Traser-UK.com).
This lamp "looks" a little like the one you showed only does it have a very ergonomic handle, a real pleasure to hold, and it has 2 Green Traser glowsticks in the head spaced 180 degrees apart that make shure you'll see your flashlight in complete darkness.
I'm currently testing the battery drain and have just completed 40 hours ! of burn time.
Now the light output of the 4 superbright LED's has dropped below that of my White Photon II with fresh batteries but its still throwing out enough light to read maps/book, walk around in the woods etc.
This Teknolite flashlight uses 3 AA batteries and has 4 LED's it's a real nice piece of equipement waterproof to 300 feet, Hydrogen gas absorption Platinum catalist pellet in the lamphead to absorb H2 gas produced by batteries when they are used, split ring safely tucked away in recessed bottom and wrist lanyard.
In short, it's a real winner
Best Scouting wishes from Holland,
Bagheera
LS. when you contact Traser-UK sales tell them "Piet" from Scouting de Bevers has referred you to them
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