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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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L=4.52"/115mm. D=29.5mm/1.16"Weight
W/Bat.= 5.1oz
CNC machined Aluminum
lanyard hole
Three sections are threaded together for upgradeability and
maintenance
Click On/Off tail cap with Momentary Off push button
Matched high-polish parabolic reflector
1mm Polycarbonate
3W Premium Luxeon LED
Unregulated
Reflector
Combination spot/wide-angle - Concentric corona
35 Lumens (Advertised)
5,000 K - approximate
3 x1.5V AAA- Alkaline, Lithium or NiMH
3 Hrs to 50% (Advertised)
Anodized Type II Black + 'O' rings at section joints
Wrist lanyard & belt pouch included
Truly white LED BIN
Limited 1 Year (none on LED or battery)
$ 69.95 as evaluated http://www.aitec.co.kr/e-indexframe.htm |
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Form Factor & Build
|
1-Classification- The ,
AT 3000L is a medium size handheld tactical
flashlight. It uses a Luxeon III LED emitter
powered by 3 AAA size batteries stored in a dedicated cradle
in it's battery compartment.
2- Geometry- The light is a radially symmetrical
cylinder.
4- Build Quality- The AT 3000L
is fairly well made by CNC machine process. There is some
threading roughness, and the qulaity of aluminum used is not
an especially hard alloy.
5- Physical Features - It looks rather minimalist
with only a modest diamond pattern knurling around the handle
and on the the tailpiece. The tail section is readily identified
by a slightly protruding rubber button cap. The head of the
light is obvious in that it contains the lens, reflector and
emiter module.
6- Wall Thickness- The aluminum wall thickness
of the battery tube is 3mm.
7- Finish- Black Type II anodizing on the
outside and throughout the inside. This anodizing should be
effective against corrosion.
8-Fit- There is no 'play' or rattle anywhere
in the AT 3000L. Satisfactory 'O' ring seals
at all junctions between sections provide, a snug fit and
a seal against the elements- especially water. The front lens
and reflector are easily accessible by unscrewing the front
bezel. Threading action is sufficiently smooth. |
| Ergonomics
& Mount Options |
1-
Laterality Dominance. The flashlight is ambidextrous.
2-Switch Activation The AT 3000L
allows for single-handed On/Off operation through the use of
a low profile push-button tail switch. Momentary Off is activated
by a slight pressing of the tailswitch when the light is On.
This light may be held in any number of ordinary as well as
tactical grip styles including forward, pointing up or down,
Harries or Surefire/Rogers.
3 -Loss Prevention/Stowage-A nylon wrist lanyard
attaches to the light with a split ring. A handsome velcro closure
-nylon belt pouch is also included |
| Affordances |
2-Controls- in normal use, light emits from
the front of the flashlight when activation occurs through
a either a partial or full pressing of the switch button.
Operating the switch only causes the button to travel about
3mm. There is no 'lock-out' or other switch protection feature.
3-Component/Section Accessibility The front
bezel section is threaded to the body section, allowing for
easy access to the enclosed LED module or ‘sandwich’
. The LED module is not easily removable without tools. The
reflector and front lens may be removed and the lens replaced.
4 A removable tailpiece protects the battery
compartment from the environment by a single 'O' ring and
allows for battery replacement. Contact pressure with the
battery is furnished by a coiled spring in the tailpiece.
The rubber covered pushbutton switch is totally water-tight. |
| Human
Factors & Usability |
1-Deployment- The AT
3000L’s simple geometrical shape suggest that
it may be easily stowed and deployed in a manner similar to
other such lights. It easily slides in and out of pockets.
The flashlight'sOn/Off functionality is simple to activate
and follows the use model of many similar lights of this caliber.
2-Basic Use Model . The switch is at the
tail end rather than at the head.
3-Changing 'States'- Focus is fixed at the
optimal beam angle produced by the matched reflector.The switch
functional model is standard and since there are only three
states, it's easy to learn
4-Usage Options The AT 3000L
is a light that can be carried or stowed loosely in a pocket
or compartment, or it may be attached to a tether through
it's ring hole. |
| Beam
Quality & Characteristics |
1-Beam Characteristics-The
high gloss plated parabolic reflector of the AT 3000L
creates a circular combination beam that is a wide series of
gradually brighter concentric bands of light, eventually pierced
by a good-sized focused circular hotspot at its center. This
is a sterotypical beam ‘profile’ for high power
LED emitters used in combination with high gloss parabolic reflectors.
2-Color compared to 5,400ºK (Daylight) Pure,
consistent and neutral white- even tonality with no anomalies
or chromatic gradations. This makes it useful for navigation/search
as well as forensic, tactical and and general nocturnal use-
calling for a medium to bright output flashlight. Color differentiation
is excellent.
3. Recommended Filters -None
4-Context of Use The wide round-shaped beam
is excellent for general searching and is bright and focused
enough to create very bright direct ambient room lighting in
a small to average sized room and still delivers a bright light
through hand-held ceiling bounce mode (18'X12' white ceiling
+ white walls).
5-Ilumination Window Category The AT
3000L creates a subject illumination in a category
that we've codified as a highly Context Inclusive Illumination
Window (CIIW) as compared with a Context Exclusive
Illumination Window (CEIW) (*5)
6-Usage Scenarios. Excellent interior navigation
in medium spaces. Excellent range for outdoor navigation and
medium distance searching.
7-Throw-To test the throw of the
AT 3000L, 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 145 feet with the subject area in near total
darkness and the evaluators and flashlight in a moderate level
of street sodium vapor ambient lighting (RH=17% at 34ºf). 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
145 feet away, the AT 3000L positively lit
up the ground 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
8-Percieved Brightness . It creates interior
illumination that is currently at the medium/high end of output
that one associates with flashlights of this size. It's more
than adequate for general searching or navigation in an emergency
and is excellent for tasks with which larger lights are typically
associated -such as for tactical applications or emergencies
of 3 hours or less duration or covering a very wide field or
long distance. It is notably brighter than many larger flashlights
of legacy LED classes as well as incandescent types. |
| Conclusions |
1-Sumarry Comments-The
AT 3000L is a decent quality
flashlight that's ideal for medium-range tasks including: personal
illumination, emergency, and as a back-up to larger and more
powerful flashlights. We judge it to be an excellent choice
for near to medium range general nocturnal activities as well
as for everyday personal and occupational carry. It is built
like a tank but needlessly so. The choice of a better quality
of aluminum stock would allow a future iteration of the AT
3000L to be much thinner walled and therefore lighter
and narrower.
2- Outstanding features:
- Looks and feels like a solid all purpose and back-up tactical
light
- Exquisitly neutral LED BIN color
- A well matched reflector
- Uses an environmentally friendly and readily available battery
type
3-Value. A fair but not excellent deal at the
current price.
4-Areas Cited For Improvement A) Deserves better
quality of raw material B) Deserves a larger lanyared hole C)
Deserves to be table standable on its tail | Deserves a better
quality of anodizing
3.75 Stars-
Marginally Recommended
Pros= Decent fit and finish | Exceptional brightness
and neutral combination beam | Uses rechargeable as well as
disposable batteries |Accessible compartments | Upgrade potential
| Water proof
Cons= Overweight | Will not stand on tail |Suboptimal
material quality | No retail source in the US |
| Pictures |




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| |
Footnotes:
(*1) Medium Men's glove size- Also, a Standardized
Flashlight Hand Size Metric (SFHSM)
 |
|
Small
A-B = 4.5" or Shorter |
| |
Medium
A-B = 4.5"-5" |
| |
Large
A-B = 5"-6" |
| |
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)
(*3) Usability testing results - in progress.
(*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 |