JetBeam M1X:
Model: M1X
LED: CREE MC-E
Max Output: 450
Lumen (Torch Lumen) / 700 Lumen (LED Lumen)
Reflector: aluminum
reflector
Lens: Toughened ultra-clear mineral glass with
anti-reflective coating
Material: T6061 T6 aircraft aluminum
alloy
Finish: HA III Military grade hard annodized
Battery:
CR123*3, RCR123*3 0r CR123*4, RCR123*4, 18650 Li-ion*2
Input
voltage: 6.5-18V
Switch: Forward clickie switch
Waterproof:
Accord to IPX-8 standard
Dimension: Bezel diameter 63mm, Body/Tail
diameter 25.4mm, Overall length 198mm
Weight: 285g
Patented
Product.
Output & Runtime:
CR123*3
Max Output 450
Lumen(Torch Lumen), 100 mins
Min Output 10 Lumen(Torch Lumen),
lasting for 150 hours
CR123*4
Max Output 450 Lumen(Torch
Lumen), 130 mins
Min Output 10 Lumen(Torch Lumen), lasting for 200
hours
18650 Rechargeable Lithium Battery
Max Output 450
Lumen(Torch Lumen), 3Hours
Min Output 10 Lumen(Torch Lumen),
lasting for 300 hours
The good:
Box is nice. It gives the light
a safe home and a cushy ride to your doorstep. Fit and finish are
very good, fits nicely in your hand. HA is nice and dark. Knurling is
not aggressive, but it doesn't really need to be. Comes on high if
head is tight (rated @ 450 lumens out the front), if you loosen the
head it goes into low mode. Low mode light output can be adjusted to
your liking by following the included instructions (the process was
pretty easy to perform). Clickie tailcap works well and locks out if
you loosen it a quarter turn. Stainless bezel and tailcap are a plus.
Came with extra o-rings & replacement rubber tailcap piece. No
obvious battery rattle unless you really shake it just right. Seems
bright but it's still daytime so I can't do anything meaningful until
the sun goes down. It's noticeably brighter than the Fenix T1 (rated
at 225 lumens).
The not so good:
Will not tailstand
(in case you were wondering). It's a bit front heavy. No lanyard
included but Surefire lanyard ring fits. Donut "cross" is
visible up close. It goes away after a few feet but seems to come
back again after 10 feet or so and continues on for some distance.
Also, when you change the user defined brightness level higher than
factory default you begin to hear what sounds like inductor whine all
the way until near full brightness. Not a big deal but it's there.
M1X with body extender. This gives you the ability
to use 4 CR123 cells or 2 18650 cells: 
Jetbeam M1X @ max -vs- Fenix T1 @ max (8
feet from wall):
Jetbeam
M1X -vs- Surefire L6 (modded w/Cree XR-E):
Jetbeam
M1X -vs- Surefire M3 (w/MN10 125 lumens):
Here's the three lights together:
Outdoor
shots. Distance 45 feet. First is the M1X (all shots on manual
exp):
Second
is the Fenix T1:
Third is the Surefire E2DL:
Fourth is the modded KL6 with a Cree XR-E:
Last
is the Surefire M3 with MN10:
Below are some beamshots at an unknown
distance. The target is a tree branch. M1X:
Fenix
T1:
Surefire
Cree XR-E modded KL6:
Vector
rechargeable 1MCP Spotlight:
Surefire
M3 w/MN10: