ok
in energy saving mode
100%/boost 2min ->50% 25min -> 15% to empty
in constant current mode
100%/boost 2min -> 60% to empty.
Guess you get another 2min if you touch the button. (saving the batterys to when it gets dark to test)
The light programs is diffrent combinations of light functions
Edit: Did a quick test tonight and first impression is good, The manual says it goes down to60% after 2min, if thats true i didn't notice it and it stil litt up treetops over 200m away (messured by counting steps) after 20min. Didn't make any beamshots but the beam pattern is just like this one
http://www.candlepowerforums.com/vb/showthread.php?t=299159