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 .7"/19mm(head)
/.5"/13mm ( Body) ,L 3.35"/82mm, W 1.1 oz.(31Grms)
with battery
Machined aluminum, Type II anodized Black (Other colors available)
Textured elastomer sleeve accents for grip/key-lanyard ring
and push button tail cap.
Unscrew tail cap for battery change
Tail cap button push momentary On & twist for On/Off
Shinny plastic reflector
Clear acrylic
5mm white Nichia
Regulated
Directional flood
Combination smooth with some hotspot <5 lumens
Average color temperature (Estimated) 5,600ºK
1.5V Cell Type 1 x AAA - included (various chemistries acceptable
including NiMH & Lithium)
8 Hours to 50% (advertised) and Longer at a reduced level
'O'-ring seals "water resistant" (Tail cap switch
not guaranteed waterproof)
N/A
Noticeably 'whiter' & wider beam profile that other lights
in this class
1Year Warranty $7.95 as
evaluated http://www.dorcy.com |
|
Form Factor & Build
|
1-Diminutive
representation of the classic flashlight form. Geometry is
a radially symmetrical round cross-section with elastomer
accents
2-Head of Light is wider than the body &
tail-piece which are almost the same diameter.
3-The flashlight is a lightweight Key chain
class pocket light
4-Usable by persons of all hand sizes
5-Especially friendly to persons with very
small hands but large enough to be manipulateable by large
handed individuals as well
6-The aluminum wall thickness of the battery
tube is 1.0 mm.
7-All sections fit together well with fairly
smooth threading action.
8-Black Type II (glossy) anodizing on the
outside and inside the battery compartment offers protection
against corrosion.
9-There is no battery rattle. 'O' ring seals
provide a snug fit and a light seal against the elements-
especially water.
10-A distinctive head section makes indexing
quick and easy.
11-There is no roll prevention
12-Tail section does not allow for self supported
ceiling bounce or candle modes without modification.* |
| Ergonomics
& Mount Options |
1-
Ambidextrous.
2- Depending on the size of the user's hands,
this light may either fit in a small child's hand or be a
finger tip light for someone with very large hands. Since
it is intended to be attached to a key-ring, it's typically
'extended' in form to include the key's or other object or
tether to which it may become attached.
3- A plastic momentary On tail switch at
the end of the tail-cap allows for simple toggling activation
of the light when the tail cap is turned to nearly On position.This
is useful for short On/Off bursts of light such might be used
for signaling or brief momentary use for searching
4- Turning the tail cap fully clockwise activates
the constant On and re-turning it clockwise turns it back
Off. a 360º anticlockwise rotation locks the tail cap to prevent
accidental activation.
5-A provision for lanyard or key ring is
built in as a strong wire shaped like a pail handle- that
is attached to the plastic push button. This wire ring may
be removed or detached to allow the threading of another ring/clip
or other terminal hardware.
|
| Affordances |
1-
Stowage- Non included. Intended for a wide variety of user
selected stowage options
2 - Activation- In normal
use, light emits from the front of the flashlight when activation
occurs through either a partial depression of the tail cap
button or a full rotation of the tail cap Activation feedback
is provided through a very slight resistance in the button.
De-activation is implemented through a reversal of the process.
No sound is made through activation/de-activation (Fully Covert
Action)
3-The front bezel is threaded and cemented
to the body section- preventing user accessibility to the
emitter module enclosed in the head section . The reflector
and lens seem permanently secured to the bezel and seem not
to be user serviceable. A single 'O'ring
protects the head section and LED module
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 an 'O' ring attached
to the body section. |
| Human
Factors & Usability |
1-Glossy
anodizing ( Satin for other colors) and smoothened contours
of the Dorcy1LED1AAA
give the surface a 'classy' touch though the elastomer accents
give it more of an industrial chic look.
2-The 'DORCY' logo is printed in embossed
into the elastomer body sleeve (earlier iterations lacked
this branding element on the sleeve but had it faintly engraved
on the body tube instead.
3- The elastomer sleeve makes the light gripable.
4- This light is a member of the largest
of the key ring lights-allowing it to bridge the gap between
true fingertip key ring lights and the larger and heavier
pocket lights that are typically heavier and may be bulkier
than the Dorcy1LED1AAA
.
5-The toggling tail cap switch activation
procedure is very sensitive -requiring the lightest touch
to activate it
6- The tail cap twisting process is similarly
easy and sensitive
7- Though this flashlight is clearly aimed
at being attached to a key ring, it may well find itself in
any of a number of places that a diminutive, handy and accessible
flashlightmight want to be
8- The tail cap button is slightly convex,
preventing it from standing on end, but a few minutes with
a file can easily flatten it to extend its usefulness.
9-The emitter module is not user accessible,
unless the bezel is removed with a force that requires the
use of a vice-grip. Once detached from the body tube, the
emitter module may be removed and the emitter abraded to ameliorate
chromatic and other anomalies inherit in the beam.
10- Useful bilingual documentation printed
on the blister pack insert, instructs on battery replacement,
use, specifications and warranty. The fine-print text might
be too small for some people to read without the aid of magnification. |
| Beam
Quality & Characteristics |
1-
The reflector of the Dorcy1LED1AAA
creates a circular beam that is a wide flood of light progressively
focused to a round hotspot in its center. This progressive transition
occurs as a result of a series of concentric rings. The amelioration
of the beam is affected through a light abrasion of the emitter.
2- The round-shaped beam is satisfactorily
bright and wide for close-up searching and is bright and focused
enough to create a low level of room/tent/chamber lighting -
especially in small rooms with light colored walls and ceiling.
3-The Dorcy1LED1AAA
creates a subject illumination in a category that we've codified
as a highly Context Inclusive Illumination Window (CEIW)
as contrasted with a Context Exclusive Illumination
Window (CIIW) (*5)
4- For one test, we used the Dorcy1LED1AAA
in hand and walked around a darkened home. It fairly well illuminated
entire hallways and rooms and delivered enough light to allow
for routine bathroom as well as bedroom activities. It is an
excellent low-cost emergency flashlight. 5-
Thanks to its reflector and circuitry, the Dorcy1LED1AAA
seems to put out more light in a wider beam than one might expect
from a 1LED1AAA flashlight
6- Key to the exceptional usability of this
product is the whiteness of the resulting beam - especially
after the aforementioned amelioration has been applied. For
an effective aftermarket beam ameloration you might try this
process on a spare Dorcy 1 X AAA flashlight >Softening
the Dorcy 1XAAA Beam 7-It is not intended
or recommended for use in bare-bulb mode, though it is bright
enough in some circumstances to be used in ceiling bounce mode
(tail cap flattening required) 8-This is
not a far throwing beam and is useful for outdoor illumination
distances of no more than 15-20 feet, but is preferred in situations
where a very bright light at close proximity may hamper low-light
vision adaptedness. 9- It excels in small
enclosed spaces, especially ones with light colored walls and
ceilings. 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 Dorcy1LED1AAA
chart photograph with a flash (White Balance set to 'Flash')
exposure of the same chart reveals a bias to blue. This makes
it useful in situations that do not demand high color differentiation.
There are chromatic variances across the beam's profile- but
these are easily ameliorated through diffusion of abrasion of
the emitter.
Beam-shots Page >> |
| Brightness |
The
Dorcy1LED1AAA
scored Maximum Distance for Object Identification
or MDOI at 20 feet
-more than adequate for close-up navigation and occasional
'point-blank' searching. It's bright enough for long enough
to be ideally suited to emergencies and situations where a
number of such lights may be scattered throughout a home,
car or carried by employees, team members or family.
Beam-shots Page >>
|
| Conclusions |
1-
At the time of this review, we judged the
Dorcy1LED1AAA
to be an ideal close-up everyday or emergency flashlight.
2- It is a substantial improvement in beam
brightness and color, bulb longevity and battery life to either
the time honored incandescent from which it descended or any
number of contemporaries that may still use bluish emitters
or depend on expensive or hard to find batteries.
3- It is thoughtfully designed for a range
of customers - being offered in a range of colors from the
stylish black on black that we reviewed to the range of anodizing
colors that should make it appealing to all genders and ages.
4- The improvement in LED color produced
by the Dorcy1LED1AAA's
LED emitter over legacy 5mm Nichia emitters
is a bonus to both experienced as well as neophyte users of
these small LED flashlights.
5- The fact that the Dorcy1LED1AAA
uses commonly available size AAA batteries makes it highly
accessible to users worldwide. Given the growing popularity
and availability of rechargeable AAA batteries, the Dorcy1LED1AAA
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 Dorcy1LED1AAA-
package the flashlight in a 'pilferage resistant' sealed plastic
display package that - makes it suitable for personal purchase
or casual gift giving. It deserves to be marketed in more
upscale packaging for gift giving purposes. The addition of
a lightweight wrist or neck lanyard would simplify the carry
of this light around the neck- where it is very handily situated
for tasks around a house, boat or campsite.
7-Value. The field of small key chain sized
lights is burgeoning and such lights exist in prices ranging
from one dollar to a hundred dollars or more.The Dorcy1LED1AAA
is outstanding as a value leader in its class and
currently rates 4.75 stars out of
a possible 5 stars.
Our gripes were... A) Beam color anomalies can be more easily
eliminated in manufacture than by the customer B) A nearly
stand-up capable tail cap button requires filing down for
extended functionality
4.75 Stars-Highly
Recommended
Pros= Exceptional
brightness/runtime and beam color for its price-point |Useful
combination light beam| Light weight form-factor | Charming
diminutive interpretation of a classic tool |Competitively priced|Useful
combination tail switch| Much better than average Warranty |
Astute choice of battery type. Cons= |
Cannot stand up on its tail without modification| Inaccessible
bezel/optics combination makes emitter modification a challenge
| Not as widely available as it might otherwise be |
| Pictures |



NOTE: Picture (Above-Center) Shows a user flattened tail cap
button


NOTE: Pictures (Above-Left) Show a user flattened tail cap
button in action and in detail (Right)

NOTE: Picture (Above-Right) Shows a user removed head section
- exposing the emitter



ABOVE-Direct Beam Shot (DBS)
|
| |
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)
(*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.
BELOW
Left Side - Test scene in daytime. Red Arrowhead
marks target location 140 (xxx Meters) feet away from camera
location. Inset shows target as it appears from 6 feet away.
Right Side - Simulates test scene as it would
appear at night.

All
Photographs © 2004 - Imago Media |