Ryan: Hate to disagree. But you can look at some
pretty new data here (it is for the Photon3 but I pretty sure the numbers are close, It's atleast close to what I've seen with the 2 PhotonsII I own)
http://www.uwgb.edu/nevermab/battery.htm
Shows the Photon only being brighter for less then
first 15 minutes (now 15 minutes is a long time for normal use),
Then it being dead in about 10.5 hours, with the Arc-AAA
being dead only 3 hours before (Ofcourse when/if they come out
with Lithium-AAA batteries that would change).
But the Photon has droped to HALF brightness in 3 hours
(to dim to use, Except in total darkness, I.E. no help to
me then I'm working on a computer or car) BUT
the Arc is still at about 65% after 6 HOURS!
My real problem with the Photons is the batteries,
They cost about $10 (for 2 CR2016) for about 3
hours of useable (for me anyway) light.
While the battery for the Arc is about .50 to $1
and gives about 6 hours of useable light.
Now as to Mag Solitaire (I have more of these then Photons by the way)
Only gets about 2 hours out of the battery and only about the
first 1 hour is real useable (again for what I do) light.
It also gets QUIET yellow as the bulb starts to die and asumeing
the bumb is not broken by a fall, You will still need to
replace the bulb after about 4-10 hours and at $1 that adds up
preety quick. And also the beam is not nearly as white or as
smooth as the Arc-AAA. Just as a side note I used a "dead"
battery from a Solitaire (I.E. NO light when in the Solitaire)
to run a ARC-AAA NON-stop for 5 hours! then shut it off over night
and it went for another hour in the morning.
It's not dead till about .600v in an ARC
But as always to each his own!