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Dimensions & Weight
Case Material
Case Features
Case Access Type
Switch Type
Reflector Type
Lens Type
Bulb Type
Circuit
Beam Type
Beam Characteristics
Overall Output
Nominal Color
Battery / Power Type
Battery Life (advertised)
Environmental Protection
Accessories
Special Items of Note
Warranty
Retail Availability & Cost |
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Diameter 1.1"(head) /.7"
( Body) ,L 6.25"(160mm), W 3.8 oz.(108Grms) with batteries
Machined aerospace-grade aluminum, Type II anodized
Knurled & machined for grip, flat tailcap
Unscrew tailcap for battery change
Fore-mounted rubberized click On/Off switch
None- Collimating optics
Clear acrylic
Low Dome - Luxeon Star 1W
Regulated
Combination medium spot and medium corona
Bright hotspot gradually to corona
52 Lumens (Advertised)
Color temperature (estimated) 5,600ºK
1.5V Cell Type 2 x AA - included ( various chemistries acceptable
including NiMH & NiCd)
Up to 2 Hours (advertised)
'O'-ring seals "water resistant"
None
Elegant presentation package and outer protective retail sleeve
10 year Limited Warranty
$64.95 as evaluated
http://www.vortexvision.us |
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Form Factor & Build
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1- Classic
hand-held flashlight form. Geometry is a radially symmetrical
round cross-section/featuring a nine longitudinal slotted
anti-roll head / smoothened contours, light diamond pattern
body knurling and functional 'railed' pattern tailcap knurling.
2- Head of Light is wider than the body
& tail-piece which are the same diameter.
3- The flashlight feels light weight but
still has substantial heft. Its styling pays cursory homage
to a late 20th Century classic- the MAG Instruments®-
Mini Mag-lite®.
4-Due to it's long and narrow-diameter body
it's ideal for individuals with small, medium or large sized
hands. In addition its slenderness lends itself stowage and
carry in accessories that accommodate any flashlight with
a body diameter of 18mm.
5- One's hand easily surrounds the body
section.The body of the light easily fills a Large or X-Large
(*1) sized palm with some protrusion. Much
more protrusion will occur with small and medium sized hands.
6- Nine slots on the head effectively prevent
the light from rolling on a smooth surface.
7- The aluminum wall thickness of the battery
tube is 1.9 mm.
8- All sections fit together well with fairly
smooth threading action.
9- Black Type II (glossy) anodizing on the
outside and inside the battery compartment offers protection
against corrosion.
10- There is some minor battery rattle.
'O' ring seals provide some shock absorption, a snug fit and
a seal against the elements- especially water.
11- A mid-length center of balance make
it comfortable to hold and practical to stand on either it's
head (down) or on its tail- provided that its placed on a
smooth surface.
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| Ergonomics
& Mount Options |
1-
Ambidextrous.
2- A large palm completely surrounds the
body of the L2A,
with the thumb and first or second fingers- naturally positioned
on the front of the body section just behind the head-portion.
In normal use, the thumb of the hand holding the light would
rest on the On/Off click switch button with the rest of the
fingers supporting from underneath.It may be hand-held in
various positions including: Harries Flashlight Technique,
forward, upward and downward pointing 'standard' flashlight
hand-held modes.
3- A rubber covered 7mm wide On/Off click
switch- just behind the head section allows for simple toggling
activation of the light.
4-There is no momentary On but momentary
Off is possible.
5- No native mounting options for fire arms
use are evident, though the mid-section may allow for dedicated
clamping brackets or other improvised and custom designed
attachment solutions.
6-No provision for lanyard or keyring is
provided
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| Affordances |
1-
Stowage- None provided. Third party holsters and carriers
as well as headbands should be plentiful.
2 - Activation- In normal
use, light is emitted from the front of the flashlight when
activation occurs through a full depression of the On/Off
click switch. Activation feedback is provided through a distinctive
haptic 'click' sensation as well as a clear sound. De-activation
is implemented via re-clicking of the toggle switch. In the
'On' position, a momentary de-activation of the light may
be implemented through a partial pressing of the switch prior
to entering the'click' Off state.This is known as 'momentary'
Off mode. This allows for manual strobe as well as signaling
functions.
3-The front bezel is threaded to the body
section, allowing for user accessibility to the emitter module
enclosed in the head section as well to the
optic and front lens that are secured to the bezel by a threaded
black plastic retainer cone. A
single 'O'ring protects the head section
from the environment.
4- The removable tailpiece allows for access to the
battery compartment for replacements.The battery compartment
is protected from the environment by a single 'O' ring and
thread lubrication.
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| Human
Factors & Usability |
1-Glossy
anodizing and smoothened contours of the L2A
give the surface a luxurious silky feel in one's bare hands.
2-The Vortex logo and flashlight's serial
number are printed in white on the opposite side of the flashlight
to the switch button behind the head section.
3- We did not perform a 'pull' test but we
judged the light diamond pattern knurling of the surface of
the flashlight body would provide fair gripability. The glossiness
of the anodizing may contribute to some loss of traction or
gripability if used with wet or oily hands.
4- The light weight and sleekness of this
light make it suitable for the home or workshop tool box,
inspection, camping, with the black version being ideal for
law enforcement and security.The head is distinctive yet unobtrusive
- allowing for clear indexing of the front of the flashlight
without causing the user any undue fatigue from either bulk
or weight. . It is certainly as suitable for outdoors,and
semi-rough environmental uses as well as being an excellent
around the house, glove box, office or workshop.
5-The toggling click switch activation procedure
is sure but requires a focused pressing of a slightly stiff
and rather 'vocal' little button. The relatively diminutive
size of the switch as compared to fully grown tactical switches
such as the Kroll makes it more easily activated by individuals
with small fingertips or great dexterity. The switch is very
intuitive to use and the cognitive model is simple and requires
neither training nor memorization of complex procedures.
6- Though this flashlight is clearly aimed
at being stored inside a container or on a table or desk,
any form of lanyard ring or hole would have been appreciated
for those that like to carry their lights on key rings or
lanyard and who need a way to hang their flashlights.
7- The tailpiece is perfectly flat and allows
for successful if tenuous ceiling bounce and candle mode uses.
8-The emitter module and optics are user
accessible- allowing for modifications
9- Good multilingual documentation instructs
on battery replacement, use, troubleshooting and maintenance
/ warranty. Text is too small for some people to read.
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| Beam
Quality & Characteristics |
1-
The collimating optic of the L2A
creates a circular beam that is a medium flood of light gradually
focused to a circular hotspot in its center. There are substantial
outer rings at the edge of the corona but the main portion of
the beam as well as the hotspot are fairly smooth. 2-
The round-shaped beam is excellent for general searching and
is bright and focused enough to create very bright ambient room
lighting through ceiling bounce mode (18'X12' white ceiling
+white walls ).
3-The L2A
creates a subject illumination in a category that we've codified
as a moderately Context Inclusive Illumination Window
(CIIW) as contrasted with a Context Exclusive
Illumination Window (CEIW) (*5)
4- For one test, we used the L2A
in hand and walked around a darkened home. It brightly illuminated
entire hallways and rooms and delivered a most respectable focus
that allowed for clear identification of anything hidden in
a dark pocket or beneath beds or furniture. It also faired admirable
in backyard foraging. The L2A fits perfectly
in a Nite-Ize® headband in either original or dual-slot
versions. Head worn it allows for hands free task completion
as well as running and bicycling.
5- Even with some obvious unevenness in the
beam's tonal gradation-in practical use it did not shine any
undesirable anomalies or dark patches that would have otherwise
impaired object identification. There were no color variances
across the beam's profile.
6- Clearly this is a multipurpose beam that
delivers a balanced compromise between a piercing spot and broad
flood, making it desirable for a wide range of uses.
7-To test the throw of the L2A,
we conducted a Maximum Distance for Object Identification
or MDOI (*2) trial and managed to
confidently differentiate our test subject (a
Black 33 Gallon (124Litre) Trash Bag) from
its immediate surroundings, from as far away as 120
feet (xxx Meters) with the subject area in near total
darkness and the evaluators and flashlight in a moderate level
of street sodium vapor ambient lighting (RH=70% at 68ºf). This
test simulated a person searching for an object of known size
-a person for example- but located in an unknown or difficult
to spot container -a black trash bag, for example. From
120 (xxx Meters) feet away, the L2A
positively lit up the vegetation surrounding our subject enough
to clearly distinguish it from the Black 33 Gallon Trash Bag,
that lay on the ground.The estimated contrast ratio
was 2:1 Beam-shots
Page >> |
| Light
Quality |
The color chart tests
photographed with a digital camera set for Daylight White Balance
and exposure set- to properly expose the gray areas of the chart
to 50% or Zone V- 'Mid-tone Gray', revealed a color temperature
of roughly 5,600ºK. Comparing the L2A
chart photograph with a flash (White Balance set to 'Flash')
exposure of the same chart reveals a very slight bias to cyan.
This makes it useful in most object identification situations
that do not involve a high level of water vapor in the air and
is very good for color differentiation. The addition of a .025
R filter behind the lens would perfectly balance the
L2A's
light with daylight. In normal use it require no filtration
whatsoever. There are no chromatic variances across the beam's
profile- making it highly user friendly. Beam-shots
Page >> |
| Brightness |
The
Vortex L2A
scored Maximum Distance for Object Identification
or MDOI at 120 feet
-more than adequate for general navigation and occasional
searching. It's bright enough to be pressed into service as
a close quarters tactical in emergencies only.
Beam-shots Page >>
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| Conclusions |
1-
At the time of this review, we judged the Vortex
L2A
to be an ideal general purpose light for individual use in
a wide range of non tactical or non mission critical applications.
2- It is a substantial improvement in brightness,
bulb longevity and battery life to the time honored classic
to which it pays homage.
3- It is thoughtfully designed for a wide
range of customers though due to the black anodizing- males
are likely to comprise the majority of its owners. It deserves
to be produced in a few other colors such as pewter/titanium
and silver.
4- The improvement in bin selection of the
Vortex L2A's LED emitter over previous
Vortex Luxeon flashlights is a bonus to both
experienced as well as neophyte users of Luxeon LED flashlights.
5- The fact that the Vortex L2A
uses commonly available size AA batteries makes it highly
accessible to users worldwide. Given the growing popularity
and availability of rechargeable AA batteries, the L2A
also gets bonus points as an environmentally sustainable and
responsible flashlight option. As such, it makes a perfect
gift for recipients that are inclined to use rechargeable
rather than disposable batteries.
6- The manufacturers of the Vortex
L2A- package the flashlight and 2 Alkaline batteries
in a very handsome textured black presentation box- making
it suitable for presentation as a gift for a variety of recipients
and for various occasions. The presentation box is also protected
by an attractive and informative outer retail sleeve.
7-Value. With new flashlights in the Luxeon
market space -being released weekly- it's hard to define a
relative value when comparing non-comparables. At
this point in time, the Vortex L2A
rates 4.0 stars out of a possible
5 stars.
Our gripes were... A) Overly delicate tailcap construction
B) Slightly slippery surface C) Lack of lanyard attachment
point
4.0 Stars-Recommended
Pros= Exceptional brightness and color fidelity
of beam for its price-point |Useful combination light beam|
User accessible emitter and optics| Sleek and light weight form-factor
| Handsome modern interpretation of a classic tool |Handsome
presentation package |Thoughtful serialization | Much better
than average Warranty | Astute choice of battery type | Ceiling
bounce mode usable
Cons= Lacks lanyard attachment point | Slightly
slippery surface| Slightly stiff switch button | Limited color
choice |
| Pictures |




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Footnotes:
(*1) Medium Men's glove size- Also, a Standardized
Flashlight Hand Size Metric (SFHSM)
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Small
A-B = 4.5" or Shorter |
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Medium
A-B = 4.5"-5" |
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Large
A-B = 5"-6" |
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X-Large
A-B = 6" and Longer |
(*2) Maximum Distance for Object
Identification (MDOI). The maximum distance that
a person without the aid of magnification-can with normal
or corrected vision, under a given ambient level of light,
identify an object of known size, and clearly distinguish
it from its surroundings. We have tentatively identified the
following scenarios for such measures:
- A single average sized person/body identification scenario
- Urban (city, inside buildings, dark alley, lit streets)
- Rural (countryside,farm residential backyard)
- Environmental (dessert, woods, wetlands, over water)
- Natural & manmade disaster (fire, flood/mudslide,earthquake,
hurricane /tornado,bombing scene, collapsed structure
etc)
- Small Inanimate Object (smaller than a shoe-box)
- Medium Inanimate Object (Black Plastic 33 Gallon (124Litre)
Garbage Bag stuffed with a big sleeping bag)
(*5) Context Inclusive Illumination
Window (CIIW) as compared with a Context
Exclusive Illumination Window (CEIW)
.
- CIIW describes a subject illumination
paradigm wherein the illumination target is the focus of
the beam's brightest disc or 'Hotspot' and peripheral objects
to the target are more dimly illuminated in a larger disc
that surrounds the focus or hotspot. This outer region is
also referred to as a corona or penumbra.
- CEIW describes a subject illumination
paradigm wherein the illumination target is the focus of
the beam's brightest disc or 'Hotspot' and peripheral objects
to the target are not sufficiently illuminated
to be easily discernable at the periphery
of subject beam's focus or hotspot.
©
2004 - Imägo Metrics - All Rights Reserved
Original standards designations (including acronyms) depicted
in this, as well as all of our evaluations are the exclusive
intellectual property of Imägo Metrics LLC and subsidiaries.
Reproduction without prior written permission is strictly
prohibited.
All
Photographs © 2004 - Imago Media |
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Legal
© Copyright 2003 Imägo Metrics LLC - All Rights
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