Imago Metrics Engineering Human & Technology Performance
Home Solutions About Us Services Methods Markets Contact

<FLASHLIGHT REVIEWS

FENIX
LOP
1 Watt Luxeon

Quick Facts:

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

.......
.......
.......
.......
.......
.......
.......
.......
.......
.......
.......
.......
.......
.......
.......
.......
.......
.......
.......
.......
L=2.9". Head W=.54" Weight with battery = .9oz
Aircraft Aluminum- Anodized Type III Black
Fine machining/Milled & knurled
Two sections are threaded together for battery access
Twist On/Off
Matched high-polished reflector
Double coated clear mineral glass
1W Luxeon LED R BIN
Voltage regulating DC/DC circuit (proprietary)
Custom polished reflector
Combination spot/wide-angle - close range use
30 Lumens (Advertised)
6,000º K - approximate
1X1.5V AAA- Alkaline & NiMH tested (Lithium recommended)
70 minutes to 50%
Black Anodized HA Type III-Throughout
Size matched split ring & Keychain clip (Included)
Excellent presentation packaging+ retail sleeve
Limited Lifetime -1 Year on LED
$47.95 http://www.lighthound.com

Form Factor & Build

1- The Fenix LOP series are ’fingertip’ sized keychain pocket flashlight that pays cursory homage in its form-factor to a well known keychain flashlight – the MAG Solitaire. The Fenix LOP uses a 1Watt Luxeon LED powered by a single AAA cell battery. The Fenix LOP is a mass produced personal tool that exudes high quality fabrication in a production flashlight.
2- The light is a radially symmetrical cylinder with only a bilaterally symmetrical tailpiece- differentiated from the head by a unique keyring terminal attachment approach.
3- Though minuscule, the Fenix LOP compensates for its diminutive size and differentiates it from the Solitaire profile, by providing subtle yet noticeable variations between surface treatmet at strategic regions.
4- The Fenix LOP is a two or three fingertip light- ideal for situations where the maximum output combined with the smallest and lightest form factor are essential. This makes it useful for individuals of all hand sizes and in situations where compactness is the key usability criterion.
5- All sections are crafted with precision and fit together very precisely with an extremely smooth threading action. One notices from taking the Fenix LOP apart that it is a tool made with high precision CNC engineering.
6- There is no 'play' or rattle anywhere in the Fenix LOP. A single 'O' ring seals the junctions between sections and provides, a snug fit and a seal against the elements- especially water. An additional 'O' ring seal prevents water from entering the bezel through the front lens.

Ergonomics & Mount Options 1- The flashlight is ambidextrous.
2- The Fenix LOP allows for single-handed On/Off operation. The first finger and thumb of the supporting hand may turn the head to activate and de-activate the light. Alternatively, a couple of fingers of one hand may hold the body while the fingers of the other-turns the head.
3- Battery changes are effected through separation of the battery compartment from the fore-end of the light
4- A 1mm diameter hole in the tailpiece allows for the attachment of a split-ring and a slot allows for that split ring to be maneuvered away from the tail- allowing thelight to stand, unencumbered in an upright posture. A second hole acts as an alternative attachment point, for tether or lanyard string.
Affordances

1- Stowage- None Applicable – keyring hole in tailcap.
2-Basic activation- in normal use, light emits from the front of the flashlight when activation occurs through a full clockwise turning of the fore-end against the rear-section. There is no follow-through before turning stops. reversing the process effects de-activation.
3- A single 'O' ring protects the battery compartment from the environment . Contact pressure with the battery is furnished by a coiled spring in the tailpiece.

Human Factors & Usability

1-The Fenix LOP’s On/Off functionality is standard and fundamentally as simple to activate as any of several flashlights of its genre. As such, its cognitive usage model is mostly familiar to people with prior experience with the MAG Solitaire while the Fenix LOP has the added convenience of a single ‘focus’ setting – a fact that discourages constant adjustment and re-adjustment.
2- An extraordinary usability characteristic of the Fenix LOP- is the fact that it produces a very wide and relatively bright beam for its tiny size- making it suitable for near distance navigation in addition to general searching
3- We didn’t perform physical tests but judged that the lack of knurling would not bee too great an issue in preventing slippage and loss in most situations, even with wet or gloved hands. A natural grip is formed by the flat milling of the hexagonal body section
4- The Fenix LOP is a light that can be carried by itself, on a lanyard or on a keychain. As such, this it highly versatile for many end-users with varied preferences for stowage. As is often the case with keychain lights, the keychain itself-with its attached keys are most of the ‘handle’ while the light may only be partly supported by the user’s hand. The great advantage of the Fenix LOP is that it can be used instead bulkier lights to give a premium quality of illumination.

Beam Quality & Characteristics 1- The smooth parabolic reflector of the Fenix LOP creates a circular combination beam that is a broad flood of light pierced by a focused circular hotspot at its center. This is a typical beam ‘profile’ for Luxeon emitters used in combination with parabolic reflectors.
2- The wide round-shaped beam is excellent for general searching and is bright and focused enough to create moderately bright direct ambient room lighting in a small to average sized room and still delivers relatively bright light through hand-held or table supported ceiling bounce mode (18'X12' white ceiling + white walls).
3-The Fenix LOP 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)
4- For one test, we used the Fenix LOP for a typical key-chain light task of illuminating a keyhole. In this test it exceeded most user needs- casting both a broad beam on half of the door as well as producing a bright and focused spot on the doorknob and a good deal of area surrounding it as well. Being substantially brighter than most keychain lights in its size class- and due to it’s wide beam, it served well in close to moderate range navigation around a house and around an automobile- as well as for searching dark nooks and crannies at close range. Searching around the trunk of a car and around the wheels- we predict that it could be pressed into service as an excellent short runtime emergency light. It admirably performed tasks that we typically associate with larger lights. Navigating dark corridors for example, or scanning a large back yard were easy for the Fenix LOP
5- There is only a slightly blue bias to the otherwise perceptually white beam. Though not noticable in practice, it is noticably bluer than somewhat pricier comparable lights- that may posess neutral BIN emitters.
6- The wide corona coupled with its diminutive size, give it ‘powerhouse’ status in most emergency situations typically reserved for much larger and heavier flashlights.
7-To test the throw of the Fenix LOP, we conducted a Maximum Distance for Object Identification or MDOI (*2) trial and managed to confidently differentiate our test subject (a Black Man’s briefcase) from its immediate surroundings, from as far away as 40 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=20% at 38ºf). This test simulated a person searching for an object of known size -a briefcase for example- but situated in a leafy camouflaged setting, such as dense underbrush for example. From 40 feet away , the Fenix LOP positively lit up the vegetation surrounding our subject enough to clearly distinguish it from the Black Man’s Briefcase, which lay on the ground. The estimated contrast ratio was 2:1
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 6000ºK. Comparing the Fenix LOP chart photograph with a flash (White Balance set to 'Flash') exposure of the same chart reveals a slight bias to blue. This makes it useful in situations demanding good fidelity color differentiation. The Fenix LOP is not intended as a forensics or artwork appreciation illuminator.
Brightness

The Fenix LOP scored Maximum Distance for Object Identification or MDOI at 40 feet -more than adequate for general searching or navigation in an emergency- though not really sufficient in tasks with which larger and more powerful lights are typically associated -such as tactical or emergencies of long durations or covering a wide field.

Conclusions 1- The Fenix LOP is an elegant and well made high performance flashlight that's ideal for close-range tasks including: wearable personal illumination, emergency, and as a back-up to larger flashlights. We judge it to be an excellent choice for near-range general nocturnal activities as well as for everyday personal carry.
2- The Fenix LOP will not disappoint potential owners that expect state of the art performance combined with high quality production build. It exudes the kind of quality one associates with custom made personal tools.
3- Outstanding features include:
- Excellent aesthetics
- Modern surface treatment and durable Hard Anodizing III
- Surprisingly wide, smooth beam color for its size
- Excellent runtime performance
4-Value.The Fenix LOP is a mass produced product and yet it serves its owners with performance and build quality that surpasses its ‘street price’. At this point in time, the Fenix LOP rates 4.95 stars out of a possible 5 stars.
Our gripes were... A) Slightly bluish emitter B) Mineral glass lens is subject to breakage.

4.95 Stars -Highly Recommended
- Value Leader

Pros= Exquisite fit and finish | Exceptional brightness and smooth combination beam | Uses rechargeable as well as disposable batteries | Exceptionally smooth activation action| High quality and performance interpretation of a modern classic | Excellent presentation packaging | Excellent Customer Relationship Management
Cons= Slightly bluish emitter| Breakable glass lens
Pictures





ABOVE,Left- Upright view of LOP as compared to TnC Keylux AAA

ABOVE, Right Head-on view of LOP as compared to TnC Keylux AAA (Note: concentric circles in LOP reflector)



 

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 © 2006 - Imago Media


 

 




 

 

 
 
Site Map
 
 
Addresses French Japanese Deutch
 
Legal © Copyright 2003 Imägo Metrics LLC - All Rights Reserved